A viewset for viewing and editing Area Measurement Systems.

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            "id": 1,
            "polity": {
                "id": 632,
                "name": "nl_dutch_emp_1",
                "long_name": "Dutch Empire",
                "start_year": 1648,
                "end_year": 1795
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": "NO_DESCRIPTION"
        },
        {
            "id": 2,
            "polity": {
                "id": 642,
                "name": "so_geledi_sultanate",
                "long_name": "Sultanate of Geledi",
                "start_year": 1750,
                "end_year": 1911
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " “The Geledi speak nostalgically of the days when reserves of durra were measured in terms of diyehiin (rectangular pits that held up to 100 quintals or 10,000 kilograms of grain than in terms of gut (smaller conical pits).” .” §REF§ (Cassanelli 1982, 166) Cassanelli, Lee. V. 1982. The Shaping of Somali Society: Reconstructing the History of a Pastoral People, 1600-1900. Philadelphia: University of Pennsylvania Press. Seshat URL: https://www.zotero.org/groups/1051264/seshat_databank/items/TKPH7Z89/library §REF§"
        },
        {
            "id": 3,
            "polity": {
                "id": 636,
                "name": "et_jimma_k",
                "long_name": "Kingdom of Jimma",
                "start_year": 1790,
                "end_year": 1932
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " The quote below discusses the general systems of measurement in Ethiopia, suggesting that the area measurements were likely present in the Kingdom of Jimma. “Three basic types of weight concepts may be discerned: firstly, vague ideas of heaviness or lightness obtained merely by lifting objects in the hand, or even by estimating their weight by sight; secondly, basic, but relatively crude concepts such as the porter, donkey, mule and camel-load, which, by reason of their simplicity, may be compared with fundamental measurements in other fields like the length of the human arm, the area ploughed by an ox in a day or the amount held in the hand; and, thirdly, more accurate measurements based on the use of some kind of scales, steelyard or other weighing apparatus.” §REF§ (Pankhurst 1970, 45) Pankhurst, Richard. ‘A Preliminary History of Ethiopian Measures, Weight and Values, Part III’. Journal of Ethiopian Studies. Vol. 8:1. Pp 45-85 Seshat URL: https://www.zotero.org/groups/1051264/seshat_databank/collections/GWWIKDDM/items/FZPKE83Z/collection §REF§"
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        {
            "id": 4,
            "polity": {
                "id": 640,
                "name": "so_habr_yunis",
                "long_name": "Habr Yunis",
                "start_year": 1300,
                "end_year": 1886
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " \"Islam was unifying element in much of the Indian Ocean, especially on both sides—the east African coast and the Malay world. The east African societies relied on Islam to help create their world since their identity derived not only from commercial links with co-religionists but on specific modes of social and commercial behavior. The Muslim religion gave prescriptions as to everyday conduct. The Koran had specific admonitions on fair practice in the market place. The Koranic injunction to have balance scales led to the appearance of a market inspector called the muhtash whose specific job was to oversee local transactions and check weights and measures among other duties.\" §REF§ (Rothman 2002: 80) Rothman, Norman C. 2002. “Indian Ocean Trading Links: The Swahili Experience,” Comparative Civilizations Review. Vol 46:6. Seshat URL: https://www.zotero.org/groups/1051264/seshat_databank/search/Rothman/titleCreatorYear/items/3WJ42ET7/item-list §REF§"
        },
        {
            "id": 5,
            "polity": {
                "id": 641,
                "name": "et_gomma_k",
                "long_name": "Kingdom of Gomma",
                "start_year": 1780,
                "end_year": 1886
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " The quote below discusses the general systems of measurement in Ethiopia, suggesting that the area measurements were likely present in the Kingdom of Gomma. “Three basic types of weight concepts may be discerned: firstly, vague ideas of heaviness or lightness obtained merely by lifting objects in the hand, or even by estimating their weight by sight; secondly, basic, but relatively crude concepts such as the porter, donkey, mule and camel-load, which, by reason of their simplicity, may be compared with fundamental measurements in other fields like the length of the human arm, the area ploughed by an ox in a day or the amount held in the hand; and, thirdly, more accurate measurements based on the use of some kind of scales, steelyard or other weighing apparatus.” §REF§ (Pankhurst 1970, 45) Pankhurst, Richard. ‘A Preliminary History of Ethiopian Measures, Weight and Values, Part III’. Journal of Ethiopian Studies. Vol. 8:1. Pp 45-85 Seshat URL: https://www.zotero.org/groups/1051264/seshat_databank/collections/GWWIKDDM/items/FZPKE83Z/collection §REF§"
        },
        {
            "id": 6,
            "polity": {
                "id": 644,
                "name": "et_harla_k",
                "long_name": "Harla Kingdom",
                "start_year": 500,
                "end_year": 1500
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " The quote below discusses the general systems of measurement in Ethiopia, suggesting that the area measurements were likely present in the Harla Kingdom. “Three basic types of weight concepts may be discerned: firstly, vague ideas of heaviness or lightness obtained merely by lifting objects in the hand, or even by estimating their weight by sight; secondly, basic, but relatively crude concepts such as the porter, donkey, mule and camel-load, which, by reason of their simplicity, may be compared with fundamental measurements in other fields like the length of the human arm, the area ploughed by an ox in a day or the amount held in the hand; and, thirdly, more accurate measurements based on the use of some kind of scales, steelyard or other weighing apparatus.” §REF§ (Pankhurst 1970, 45) Pankhurst, Richard. ‘A Preliminary History of Ethiopian Measures, Weight and Values, Part III’. Journal of Ethiopian Studies. Vol. 8:1. Pp 45-85 Seshat URL: https://www.zotero.org/groups/1051264/seshat_databank/collections/GWWIKDDM/items/FZPKE83Z/collection §REF§"
        },
        {
            "id": 7,
            "polity": {
                "id": 645,
                "name": "et_hadiya_sultanate",
                "long_name": "Hadiya Sultanate",
                "start_year": 1300,
                "end_year": 1680
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " The quote below discusses the general systems of measurement in Ethiopia, suggesting that the area measurements were likely present in the Hadiya Sultanate. “Three basic types of weight concepts may be discerned: firstly, vague ideas of heaviness or lightness obtained merely by lifting objects in the hand, or even by estimating their weight by sight; secondly, basic, but relatively crude concepts such as the porter, donkey, mule and camel-load, which, by reason of their simplicity, may be compared with fundamental measurements in other fields like the length of the human arm, the area ploughed by an ox in a day or the amount held in the hand; and, thirdly, more accurate measurements based on the use of some kind of scales, steelyard or other weighing apparatus.” §REF§ (Pankhurst 1970, 45) Pankhurst, Richard. ‘A Preliminary History of Ethiopian Measures, Weight and Values, Part III’. Journal of Ethiopian Studies. Vol. 8:1. Pp 45-85 Seshat URL: https://www.zotero.org/groups/1051264/seshat_databank/collections/GWWIKDDM/items/FZPKE83Z/collection §REF§"
        },
        {
            "id": 8,
            "polity": {
                "id": 647,
                "name": "er_medri_bahri",
                "long_name": "Medri Bahri",
                "start_year": 1310,
                "end_year": 1889
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " The quote below discusses the general systems of measurement in Ethiopia, because Medri Bahri was a vassal state to the Ethiopian Empire, it is likely that area measurements such as this would have existed in Medri Bahri as well. “Three basic types of weight concepts may be discerned: firstly, vague ideas of heaviness or lightness obtained merely by lifting objects in the hand, or even by estimating their weight by sight; secondly, basic, but relatively crude concepts such as the porter, donkey, mule and camel-load, which, by reason of their simplicity, may be compared with fundamental measurements in other fields like the length of the human arm, the area ploughed by an ox in a day or the amount held in the hand; and, thirdly, more accurate measurements based on the use of some kind of scales, steelyard or other weighing apparatus.” §REF§ (Pankhurst 1970, 45) Pankhurst, Richard. ‘A Preliminary History of Ethiopian Measures, Weight and Values, Part III’. Journal of Ethiopian Studies. Vol. 8:1. Pp 45-85 Seshat URL: https://www.zotero.org/groups/1051264/seshat_databank/collections/GWWIKDDM/items/FZPKE83Z/collection §REF§"
        },
        {
            "id": 9,
            "polity": {
                "id": 649,
                "name": "et_funj_sultanate",
                "long_name": "Funj Sultanate",
                "start_year": 1504,
                "end_year": 1820
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " The quote below discusses the general systems of measurement in Ethiopia, suggesting that the area measurements were likely present in the Funj Sultanate. “Three basic types of weight concepts may be discerned: firstly, vague ideas of heaviness or lightness obtained merely by lifting objects in the hand, or even by estimating their weight by sight; secondly, basic, but relatively crude concepts such as the porter, donkey, mule and camel-load, which, by reason of their simplicity, may be compared with fundamental measurements in other fields like the length of the human arm, the area ploughed by an ox in a day or the amount held in the hand; and, thirdly, more accurate measurements based on the use of some kind of scales, steelyard or other weighing apparatus.” §REF§ (Pankhurst 1970, 45) Pankhurst, Richard. ‘A Preliminary History of Ethiopian Measures, Weight and Values, Part III’. Journal of Ethiopian Studies. Vol. 8:1. Pp 45-85 Seshat URL: https://www.zotero.org/groups/1051264/seshat_databank/collections/GWWIKDDM/items/FZPKE83Z/collection §REF§"
        },
        {
            "id": 10,
            "polity": {
                "id": 650,
                "name": "et_kaffa_k",
                "long_name": "Kingdom of Kaffa",
                "start_year": 1390,
                "end_year": 1897
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " The quote below discusses the general systems of measurement in Ethiopia, suggesting that the area measurements were likely present in the Kingdom of Kaffa. “Three basic types of weight concepts may be discerned: firstly, vague ideas of heaviness or lightness obtained merely by lifting objects in the hand, or even by estimating their weight by sight; secondly, basic, but relatively crude concepts such as the porter, donkey, mule and camel-load, which, by reason of their simplicity, may be compared with fundamental measurements in other fields like the length of the human arm, the area ploughed by an ox in a day or the amount held in the hand; and, thirdly, more accurate measurements based on the use of some kind of scales, steelyard or other weighing apparatus.” §REF§ (Pankhurst 1970, 45) Pankhurst, Richard. ‘A Preliminary History of Ethiopian Measures, Weight and Values, Part III’. Journal of Ethiopian Studies. Vol. 8:1. Pp 45-85 Seshat URL: https://www.zotero.org/groups/1051264/seshat_databank/collections/GWWIKDDM/items/FZPKE83Z/collection §REF§"
        },
        {
            "id": 11,
            "polity": {
                "id": 651,
                "name": "et_gumma_k",
                "long_name": "Kingdom of Gumma",
                "start_year": 1800,
                "end_year": 1897
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " The quote below discusses the general systems of measurement in Ethiopia, suggesting that the area measurements were likely present in the Kingdom of Gumma. “Three basic types of weight concepts may be discerned: firstly, vague ideas of heaviness or lightness obtained merely by lifting objects in the hand, or even by estimating their weight by sight; secondly, basic, but relatively crude concepts such as the porter, donkey, mule and camel-load, which, by reason of their simplicity, may be compared with fundamental measurements in other fields like the length of the human arm, the area ploughed by an ox in a day or the amount held in the hand; and, thirdly, more accurate measurements based on the use of some kind of scales, steelyard or other weighing apparatus.” §REF§ (Pankhurst 1970, 45) Pankhurst, Richard. ‘A Preliminary History of Ethiopian Measures, Weight and Values, Part III’. Journal of Ethiopian Studies. Vol. 8:1. Pp 45-85 Seshat URL: https://www.zotero.org/groups/1051264/seshat_databank/collections/GWWIKDDM/items/FZPKE83Z/collection §REF§"
        },
        {
            "id": 12,
            "polity": {
                "id": 652,
                "name": "et_harar_emirate",
                "long_name": "Emirate of Harar",
                "start_year": 1650,
                "end_year": 1875
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " The quote below discusses the general systems of measurement in Ethiopia, suggesting that the area measurements were likely present in the Emirate of Harar. “Three basic types of weight concepts may be discerned: firstly, vague ideas of heaviness or lightness obtained merely by lifting objects in the hand, or even by estimating their weight by sight; secondly, basic, but relatively crude concepts such as the porter, donkey, mule and camel-load, which, by reason of their simplicity, may be compared with fundamental measurements in other fields like the length of the human arm, the area ploughed by an ox in a day or the amount held in the hand; and, thirdly, more accurate measurements based on the use of some kind of scales, steelyard or other weighing apparatus.” §REF§ (Pankhurst 1970, 45) Pankhurst, Richard. ‘A Preliminary History of Ethiopian Measures, Weight and Values, Part III’. Journal of Ethiopian Studies. Vol. 8:1. Pp 45-85 Seshat URL: https://www.zotero.org/groups/1051264/seshat_databank/collections/GWWIKDDM/items/FZPKE83Z/collection §REF§"
        },
        {
            "id": 13,
            "polity": {
                "id": 653,
                "name": "et_aussa_sultanate",
                "long_name": "Early Sultanate of Aussa",
                "start_year": 1734,
                "end_year": 1895
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " The quote below discusses the general systems of measurement in Ethiopia, suggesting that the area measurements were likely present in the Sultanate of Aussa. “Three basic types of weight concepts may be discerned: firstly, vague ideas of heaviness or lightness obtained merely by lifting objects in the hand, or even by estimating their weight by sight; secondly, basic, but relatively crude concepts such as the porter, donkey, mule and camel-load, which, by reason of their simplicity, may be compared with fundamental measurements in other fields like the length of the human arm, the area ploughed by an ox in a day or the amount held in the hand; and, thirdly, more accurate measurements based on the use of some kind of scales, steelyard or other weighing apparatus.” §REF§ (Pankhurst 1970, 45) Pankhurst, Richard. ‘A Preliminary History of Ethiopian Measures, Weight and Values, Part III’. Journal of Ethiopian Studies. Vol. 8:1. Pp 45-85 Seshat URL: https://www.zotero.org/groups/1051264/seshat_databank/collections/GWWIKDDM/items/FZPKE83Z/collection §REF§"
        },
        {
            "id": 14,
            "polity": {
                "id": 654,
                "name": "so_isaaq_sultanate",
                "long_name": "Isaaq Sultanate",
                "start_year": 1300,
                "end_year": 1886
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " \"Islam was unifying element in much of the Indian Ocean, especially on both sides—the east African coast and the Malay world. The east African societies relied on Islam to help create their world since their identity derived not only from commercial links with co-religionists but on specific modes of social and commercial behavior. The Muslim religion gave prescriptions as to everyday conduct. The Koran had specific admonitions on fair practice in the market place. The Koranic injunction to have balance scales led to the appearance of a market inspector called the muhtash whose specific job was to oversee local transactions and check weights and measures among other duties.\" §REF§ (Rothman 2002: 80) Rothman, Norman C. 2002. “Indian Ocean Trading Links: The Swahili Experience,” Comparative Civilizations Review. Vol 46:6. Seshat URL: https://www.zotero.org/groups/1051264/seshat_databank/search/Rothman/titleCreatorYear/items/3WJ42ET7/item-list §REF§"
        },
        {
            "id": 15,
            "polity": {
                "id": 569,
                "name": "mx_mexico_1",
                "long_name": "Early United Mexican States",
                "start_year": 1810,
                "end_year": 1920
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " Old Mexican units of length included Sitio, Labor, Fanega etc. the metric system was adopted in 1857.§REF§(Cardarelli 2003: 164) Cardarelli, François. 2003. Encyclopaedia of Scientific Units, Weights, and Measures: Their SI Equivalences and Origins. London; New York: Springer. https://www.zotero.org/groups/1051264/seshat_databank/UWS9ZN34§REF§"
        },
        {
            "id": 16,
            "polity": {
                "id": 579,
                "name": "gb_england_plantagenet",
                "long_name": "Plantagenet England",
                "start_year": 1154,
                "end_year": 1485
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " Area was measured out in acres and hectares. §REF§(Prestwich 2005: 558) Prestwich, Michael. 2005. Plantagenet England 1225-1360. Oxford: Oxford University Press. https://www.zotero.org/groups/1051264/seshat_databank/items/XTBKFDCI§REF§"
        },
        {
            "id": 17,
            "polity": {
                "id": 568,
                "name": "cz_bohemian_k_2",
                "long_name": "Kingdom of Bohemia - Luxembourgian and Jagiellonian Dynasty",
                "start_year": 1310,
                "end_year": 1526
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " eg Bohemia used Lan, Jitro, Korec and Merice.§REF§(Cardarelli 2003: 104) Cardarelli, François. 2003. Encyclopaedia of Scientific Units, Weights, and Measures: Their SI Equivalences and Origins. London; New York: Springer. https://www.zotero.org/groups/1051264/seshat_databank/items/UWS9ZN34§REF§"
        },
        {
            "id": 18,
            "polity": {
                "id": 575,
                "name": "us_united_states_of_america_reconstruction",
                "long_name": "Us Reconstruction-Progressive",
                "start_year": 1866,
                "end_year": 1933
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " The United States Customary Units (USCS) were developed from the English measurement system and were standardised in 1824. e.g square foot, square mile, acre, section.§REF§‘United States Customary Units’. https://www.zotero.org/groups/1051264/seshat_databank/items/K2R2BW5U.§REF§ Farmlands and plantations were divided into acres. While plantations could be many thousands of acres, family farm standards were 160 acres, which was initially set by the way territory was divided up in the Midwest, and later adopted by the government as a standard measurement. §REF§Volo and Volo 2004: 62-63. https://www.zotero.org/groups/1051264/seshat_databank/items/SIB5XSW97.§REF§"
        },
        {
            "id": 19,
            "polity": {
                "id": 563,
                "name": "us_antebellum",
                "long_name": "Antebellum US",
                "start_year": 1776,
                "end_year": 1865
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " The United States Customary Units (USCS) were developed from the English measurement system and were standardised in 1824. e.g square foot, square mile, acre, section.§REF§‘United States Customary Units’. https://www.zotero.org/groups/1051264/seshat_databank/items/K2R2BW5U.§REF§ Farmlands and plantations were divided into acres. While plantations could be many thousands of acres, family farm standards were 160 acres, which was initially set by the way territory was divided up in the Midwest, and later adopted by the government as a standard measurement. §REF§Volo and Volo 2004: 62-63. https://www.zotero.org/groups/1051264/seshat_databank/items/SIB5XSW97.§REF§"
        },
        {
            "id": 20,
            "polity": {
                "id": 302,
                "name": "gb_tudor_stuart",
                "long_name": "England Tudor-Stuart",
                "start_year": 1486,
                "end_year": 1689
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " Area was measured in squared yards, feet or miles, but the exact measurements of these differentiated between regions and time periods.§REF§(Cardarelli 2003: 35-36) Cardarelli, François. 2003. Encyclopaedia of Scientific Units, Weights, and Measures: Their SI Equivalences and Origins. London; New York: Springer. https://www.zotero.org/groups/1051264/seshat_databank/items/UWS9ZN34§REF§"
        },
        {
            "id": 21,
            "polity": {
                "id": 295,
                "name": "tm_khwarezmid_emp",
                "long_name": "Khwarezmid Empire",
                "start_year": 1157,
                "end_year": 1231
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " Arabic systems of area included Feddan, Djarib, Daneq, Qirat. §REF§Cardarelli 2003: 77-79. https://www.zotero.org/groups/1051264/seshat_databank/items/UWS9ZN34.§REF§"
        },
        {
            "id": 22,
            "polity": {
                "id": 797,
                "name": "de_empire_1",
                "long_name": "Holy Roman Empire - Ottonian-Salian Dynasty",
                "start_year": 919,
                "end_year": 1125
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": "There was not one centralised measurement system in the HRE, rather each country had their own standards. For example, Germany and Austria used meile/fuss/zoll, while in Italy they used miglio/piede/oncia. §REF§Cardarelli 2003: 87-88, 100-103. https://www.zotero.org/groups/1051264/seshat_databank/items/UWS9ZN34.§REF§"
        },
        {
            "id": 23,
            "polity": {
                "id": 565,
                "name": "at_habsburg_1",
                "long_name": "Austria - Habsburg Dynasty I",
                "start_year": 1454,
                "end_year": 1648
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " During this period the Austrian measurement systems were derived from Prussian and German systems. Meile (mile), Ruthe (yard), Fuss (foot), Zoll (inch), KLinie (line). §REF§(Cardarelli 2003: 100) Cardarelli, François. 2003. Encyclopaedia of Scientific Units, Weights, and Measures: Their SI Equivalences and Origins. London; New York: Springer. https://www.zotero.org/groups/1051264/seshat_databank/items/UWS9ZN34§REF§"
        },
        {
            "id": 24,
            "polity": {
                "id": 573,
                "name": "ru_golden_horde",
                "long_name": "Golden Horde",
                "start_year": 1240,
                "end_year": 1440
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " the Tatars had a land measurement system.§REF§Khakimov and Favereau 2017: 197. https://www.zotero.org/groups/1051264/seshat_databank/items/QL8H3FN8§REF§"
        },
        {
            "id": 25,
            "polity": {
                "id": 587,
                "name": "gb_british_emp_1",
                "long_name": "British Empire I",
                "start_year": 1690,
                "end_year": 1849
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 26,
            "polity": {
                "id": 566,
                "name": "fr_france_napoleonic",
                "long_name": "Napoleonic France",
                "start_year": 1816,
                "end_year": 1870
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " France had made the metric system of measurements and units since 1794. §REF§Cardarelli 2003: 73. https://www.zotero.org/groups/1051264/seshat_databank/items/UWS9ZN34.§REF§"
        },
        {
            "id": 27,
            "polity": {
                "id": 576,
                "name": "us_chaco_bonito_3",
                "long_name": "Chaco Canyon - Late Bonito phase",
                "start_year": 1101,
                "end_year": 1140
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": "  “The Chacoan people created an urban center of spectacular public architecture by employing formal design, astronomical alignments, geometry, unique masonry, landscaping, and engineering techniques that allowed multi-storied construction for the first time in the American Southwest.”§REF§(“Chaco Culture”) “Chaco Culture” NPS Museum Collections, accessed May 8, 2023, https://www.nps.gov/museum/exhibits/chcu/index1.html. https://www.zotero.org/groups/1051264/seshat_databank/items/NMRVDA5I§REF§"
        },
        {
            "id": 28,
            "polity": {
                "id": 360,
                "name": "ir_saffarid_emp",
                "long_name": "Saffarid Caliphate",
                "start_year": 861,
                "end_year": 1003
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": " The sources consulted have not confirmed the system used, however it is likely they had one given their extensive infrastructures, and that they probably used a Persian system."
        },
        {
            "id": 29,
            "polity": {
                "id": 305,
                "name": "it_lombard_k",
                "long_name": "Lombard Kingdom",
                "start_year": 568,
                "end_year": 774
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "unknown",
            "comment": null,
            "description": " Measurement systems have not been mentioned in the sources consulted."
        },
        {
            "id": 30,
            "polity": {
                "id": 561,
                "name": "us_hohokam_culture",
                "long_name": "Hohokam Culture",
                "start_year": 300,
                "end_year": 1500
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 31,
            "polity": {
                "id": 786,
                "name": "gb_british_emp_2",
                "long_name": "British Empire II",
                "start_year": 1850,
                "end_year": 1968
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 32,
            "polity": {
                "id": 567,
                "name": "at_habsburg_2",
                "long_name": "Austria - Habsburg Dynasty II",
                "start_year": 1649,
                "end_year": 1918
            },
            "year_from": 1649,
            "year_to": 1870,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": "Old Austrian area units were “derived from Prussian and German systems.” These included joch, metze and square klafter. §REF§(Cardarelli 2003: 99) Cardarelli, François. 2003. Encyclopaedia of Scientific Units, Weights, and Measures: Their SI Equivalences and Origins. London; New York: Springer. https://www.zotero.org/groups/1051264/seshat_databank/items/UWS9ZN34§REF§"
        },
        {
            "id": 33,
            "polity": {
                "id": 567,
                "name": "at_habsburg_2",
                "long_name": "Austria - Habsburg Dynasty II",
                "start_year": 1649,
                "end_year": 1918
            },
            "year_from": 1871,
            "year_to": 1918,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": "In 1871 the metric system was adopted and in 1876 it became compulsory. §REF§(Cardarelli 2003: 99) Cardarelli, François. 2003. Encyclopaedia of Scientific Units, Weights, and Measures: Their SI Equivalences and Origins. London; New York: Springer. https://www.zotero.org/groups/1051264/seshat_databank/items/UWS9ZN34§REF§"
        },
        {
            "id": 34,
            "polity": {
                "id": 601,
                "name": "ru_soviet_union",
                "long_name": "Soviet Union",
                "start_year": 1918,
                "end_year": 1991
            },
            "year_from": 1923,
            "year_to": 1991,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": ""
        },
        {
            "id": 35,
            "polity": {
                "id": 571,
                "name": "ru_romanov_dyn_2",
                "long_name": "Russian Empire, Romanov Dynasty II",
                "start_year": 1776,
                "end_year": 1917
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": "Dessiatina: The primary unit for measuring land area in the Russian Empire was the dessiatina. One dessiatina was equivalent to about 2.7 acres or 1.09 hectares. It was widely used in agriculture, land transactions, and taxation.§REF§Очерки Истории Русской Метрологии. XI - Начало XX Века - Шостьин Н.А., n.d.,<a href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/K39G27B6\" target=\"_blank\" class=\"fw-bolder\"> <b> Zotero link: K39G27B6</b></a>§REF§"
        },
        {
            "id": 36,
            "polity": {
                "id": 250,
                "name": "cn_qin_emp",
                "long_name": "Qin Empire",
                "start_year": -338,
                "end_year": -207
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": "Shi Huangdi \"unified the Chinese script, currency and measurement system\"§REF§(Law 2004, 12) Law, Eugene. 2004. 中国指南. 五洲传播出版社.§REF§"
        },
        {
            "id": 37,
            "polity": {
                "id": 426,
                "name": "cn_southern_song_dyn",
                "long_name": "Southern Song",
                "start_year": 1127,
                "end_year": 1279
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": "EMPTY_COMMENT",
            "description": null
        },
        {
            "id": 38,
            "polity": {
                "id": 423,
                "name": "cn_eastern_zhou_warring_states",
                "long_name": "Eastern Zhou",
                "start_year": -475,
                "end_year": -256
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": "Shang Yang noted for standardizing measurement systems of Qin in 4th c bce, but clear that all Warring States kingdoms each had their own systems of measurement, sometimes with regional differences as well",
            "description": null
        },
        {
            "id": 39,
            "polity": {
                "id": 506,
                "name": "gr_macedonian_emp",
                "long_name": "Macedonian Empire",
                "start_year": -330,
                "end_year": -312
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": "EMPTY_COMMENT",
            "description": null
        },
        {
            "id": 40,
            "polity": {
                "id": 708,
                "name": "pt_portuguese_emp_1",
                "long_name": "Portuguese Empire - Renaissance Period",
                "start_year": 1495,
                "end_year": 1579
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": "\"Dom Manuel I (1495-1521), no âmbito da reforma das ordenações e dos forais, empreenderá também uma reforma dos pesos e medidas tão importante que se manterá em vigor até ao século XIX.\"§REF§Seabra Lopes, L. 2005. A cultura da medição em Portugal ao longo da história. <i>Educação e Matemática</i>: 42-48 (45).§REF§ Translation: \"Finally, Dom Manuel I (1495-1521), as part of his reform of ordinances and charters, also implemented a reform of weights and measures so important that it remain in force until the 19th century.\" Seabra Lopes then goes on to describe, in detail, how this reform affected measurements of length, volume, and weight."
        },
        {
            "id": 41,
            "polity": {
                "id": 709,
                "name": "pt_portuguese_emp_2",
                "long_name": "Portuguese Empire - Early Modern",
                "start_year": 1640,
                "end_year": 1806
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": "\"Dom Manuel I (1495-1521), no âmbito da reforma das ordenações e dos forais, empreenderá também uma reforma dos pesos e medidas tão importante que se manterá em vigor até ao século XIX.\"§REF§Seabra Lopes, L. 2005. A cultura da medição em Portugal ao longo da história. <i>Educação e Matemática</i>: 42-48 (45).§REF§ Translation: \"Finally, Dom Manuel I (1495-1521), as part of his reform of ordinances and charters, also implemented a reform of weights and measures so important that it remain in force until the 19th century.\" Seabra Lopes then goes on to describe, in detail, how this reform affected measurements of length, volume, and weight."
        },
        {
            "id": 42,
            "polity": {
                "id": 337,
                "name": "ru_moskva_rurik_dyn",
                "long_name": "Grand Principality of Moscow, Rurikid Dynasty",
                "start_year": 1480,
                "end_year": 1613
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": "десяти́на (Desyatina), approximately one hectare",
            "description": null
        },
        {
            "id": 43,
            "polity": {
                "id": 314,
                "name": "ua_kievan_rus",
                "long_name": "Kievan Rus",
                "start_year": 880,
                "end_year": 1242
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": null,
            "description": "Known from the 1229 CE Smolensk Pravda that the Church controlled weights and measures for a time from the end of the 12th century, before this time \"presumably a responsibility of the secular powers\" because \"the Charter of Rostislav Mstislavich of 1136 which regulated the bishop's income in great detail, did not mention any ecclesiastical involvement in weights and measures.\"§REF§(Feldbrugge 2017, 461-462) Ferdinand J M Feldbrugge. 2017. A History of Russian Law: From Ancient Times to the Council Code (Ulozhenie) of Tsar Aleksei Mikhailovich of 1649. BRILL. Leiden.§REF§"
        },
        {
            "id": 44,
            "polity": {
                "id": 535,
                "name": "ug_bunyoro_k_2",
                "long_name": "Bito Dynasty",
                "start_year": 1700,
                "end_year": 1894
            },
            "year_from": 1700,
            "year_to": 1859,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "absent",
            "comment": "EMPTY_COMMENT",
            "description": null
        },
        {
            "id": 45,
            "polity": {
                "id": 535,
                "name": "ug_bunyoro_k_2",
                "long_name": "Bito Dynasty",
                "start_year": 1700,
                "end_year": 1894
            },
            "year_from": 1860,
            "year_to": 1894,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "absent",
            "comment": "In reference to 19th-century Bunyoro-Kitara: \"But there were no accepted standard weights and measures.\"  <a class=\"fw-bold\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/DBEPG6WE\">[Uzoigwe 1972, p. 447]</a>  Given likely continuity in economic matters between this period and preceding centuries (Uzoigwe  <a class=\"fw-bold\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/DBEPG6WE\">[Uzoigwe 1972, p. 247]</a>  specifically notes that the Babito \"do not seem to have introduced any fundamental economic changes\" or \"any revolutionary social reorganization\"), it seems reasonable to infer that that this statement applies to the 18th century as well.",
            "description": null
        },
        {
            "id": 46,
            "polity": {
                "id": 534,
                "name": "ug_bunyoro_k_1",
                "long_name": "Cwezi Dynasty",
                "start_year": 1450,
                "end_year": 1699
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "absent",
            "comment": "In reference to 19th-century Bunyoro-Kitara: \"But there were no accepted standard weights and measures.\"  <a class=\"fw-bold\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/DBEPG6WE\">[Uzoigwe 1972, p. 447]</a>  Given likely continuity in economic matters between this period and preceding centuries (Uzoigwe  <a class=\"fw-bold\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/DBEPG6WE\">[Uzoigwe 1972, p. 247]</a>  specifically notes that the Babito \"do not seem to have introduced any fundamental economic changes\" or \"any revolutionaty social reorganization\"), it seems reasonable to infer that that this statement applies to preceding centuries as well.",
            "description": null
        },
        {
            "id": 48,
            "polity": {
                "id": 793,
                "name": "bd_sena_dyn",
                "long_name": "Sena Dynasty",
                "start_year": 1095,
                "end_year": 1245
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "absent",
            "comment": "Furui mentions that there are differences for measuring standards and units for records of plot and settlement lands and a failure by the Senas to impose a uniform standard.  <a class=\"fw-bold\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/84Q49F5X\">[Furui 2020]</a>",
            "description": null
        },
        {
            "id": 49,
            "polity": {
                "id": 223,
                "name": "ma_almoravid_dyn",
                "long_name": "Almoravids",
                "start_year": 1035,
                "end_year": 1150
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": "EMPTY_COMMENT",
            "description": null
        },
        {
            "id": 50,
            "polity": {
                "id": 284,
                "name": "hu_avar_khaganate",
                "long_name": "Avar Khaganate",
                "start_year": 586,
                "end_year": 822
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "unknown",
            "comment": "no data.",
            "description": null
        },
        {
            "id": 51,
            "polity": {
                "id": 210,
                "name": "et_aksum_emp_2",
                "long_name": "Axum II",
                "start_year": 350,
                "end_year": 599
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Area_measurement_system",
            "area_measurement_system": "present",
            "comment": "Aksum had scholars and scribes.  <a class=\"fw-bold\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/R5JM2PGZ\">[Murray 2009]</a>  \"Aksumite rulers who often spoke and read in Greek, put great store in written documents and in libraries to keep them\".  <a class=\"fw-bold\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/R5JM2PGZ\">[Murray 2009]</a>   \"Thousands of Aksumite documents have been preserved, including theological tracts and medical treatises, as well as important writings on natural history that were studied by contemporaries in Europe.\"  <a class=\"fw-bold\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/R5JM2PGZ\">[Murray 2009]</a>  \"The Periplus of the Erythraean Sea, around 50 CE, \"describes the ruler of the region, King Zoscales, as 'well versed in Hellenic sciences'.\"  <a class=\"fw-bold\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/CDG9NXGX\">[Whitewright_et_al 2007]</a>",
            "description": null
        }
    ]
}