A viewset for viewing and editing Irrigation Systems.

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{
    "count": 468,
    "next": "https://seshat-db.com/api/sc/irrigation-systems/?format=api&page=3",
    "previous": "https://seshat-db.com/api/sc/irrigation-systems/?format=api",
    "results": [
        {
            "id": 51,
            "polity": {
                "id": 109,
                "name": "eg_ptolemaic_k_1",
                "long_name": "Ptolemaic Kingdom I",
                "start_year": -305,
                "end_year": -217
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Irrigation system created and maintained by the Egyptian peasantry. §REF§(Lloyd 2000, 410)§REF§"
        },
        {
            "id": 52,
            "polity": {
                "id": 207,
                "name": "eg_ptolemaic_k_2",
                "long_name": "Ptolemaic Kingdom II",
                "start_year": -217,
                "end_year": -30
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Irrigation system created and maintained by the Egyptian peasantry. §REF§(Lloyd 2000, 410)§REF§"
        },
        {
            "id": 53,
            "polity": {
                "id": 518,
                "name": "eg_regions",
                "long_name": "Egypt - Period of the Regions",
                "start_year": -2150,
                "end_year": -2016
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Irrigation systems from Menes who began construction of basins to retain flood waters, dug canals and irrigation ditches to reclaim marshland. By 2500 BCE, a system of dikes, canals and sluices had been constructed. Irrigation system was communal. §REF§(Angelakis et al. 2012, 128)§REF§§REF§(Angelakis et al. 2012, 130)§REF§"
        },
        {
            "id": 54,
            "polity": {
                "id": 203,
                "name": "eg_saite",
                "long_name": "Egypt - Saite Period",
                "start_year": -664,
                "end_year": -525
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 55,
            "polity": {
                "id": 520,
                "name": "eg_thebes_hyksos",
                "long_name": "Egypt - Thebes-Hyksos Period",
                "start_year": -1720,
                "end_year": -1567
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "absent",
            "comment": null,
            "description": " Hyksos introduced the well-sweep. §REF§(Hayes 1990, 4)§REF§ Not enough to be considered an irrigation system (significant infrastructure such as pipes, cisterns, channels that constitute a working system, that requires more than one person to maintain.)"
        },
        {
            "id": 56,
            "polity": {
                "id": 200,
                "name": "eg_thebes_libyan",
                "long_name": "Egypt - Thebes-Libyan Period",
                "start_year": -1069,
                "end_year": -747
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Present in Ramesside period."
        },
        {
            "id": 57,
            "polity": {
                "id": 361,
                "name": "eg_thulunid_ikhshidid",
                "long_name": "Egypt - Tulunid-Ikhshidid Period",
                "start_year": 868,
                "end_year": 969
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Ibn Tulun, the founder of the Tulunid Dynasty, introduced agrarian reforms. §REF§(Esposito 2004, 130) Esposito, J. 2004. The Oxford Dictionary of Islam. Oxford University Press.)§REF§ Irrigation systems would have pre-existed the Tulunid period."
        },
        {
            "id": 58,
            "polity": {
                "id": 84,
                "name": "es_spanish_emp_1",
                "long_name": "Spanish Empire I",
                "start_year": 1516,
                "end_year": 1715
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Sluice gates used for irrigation. §REF§(Casey 2002, 32) Casey, James. 2002. <i>Early Modern Spain: A Social History.</i> New York: Routledge. <a class=\"external free\" href=\"https://www.zotero.org/groups/seshat_databank/items/itemKey/2SNTRSWT\" rel=\"nofollow\">https://www.zotero.org/groups/seshat_databank/items/itemKey/2SNTRSWT</a>§REF§  \"Vilanova de Castelló (Valencia) borrowed heavily over several generations between 1587 and 1645 to build and maintain an irrigation canal.\"§REF§(Casey 2002, 42) Casey, James. 2002. <i>Early Modern Spain: A Social History</i>. New York: Routledge. <a class=\"external free\" href=\"https://www.zotero.org/groups/seshat_databank/items/itemKey/2SNTRSWT\" rel=\"nofollow\">https://www.zotero.org/groups/seshat_databank/items/itemKey/2SNTRSWT</a>§REF§ However, there was not systemic nationwide irrigation: \"The positive plans (among many fantasies) advocated by the arbitristas included the drastic cutting of government expenditure, the reform of the tax system, the encouragement of immigration into Castile, systematic and extensive irrigation, protection of industry, improvement of transport, and, finally, the sharing of the cost of empire among the constituent kingdoms of the monarchy. These were reasonable proposals, not unlike those put forward by mercantilist writers in the rest of Europe who treated economic activity as a means of increasing the power of the state. But time would show that the Castilian ruling classes would be neither capable nor willing to act on them.\" §REF§-- “Spain | Facts, Culture, History, &amp; Points of Interest.” <i>Encyclopedia Britannica.</i> Accessed May 4, 2017. <a class=\"external free\" href=\"https://www.britannica.com/place/Spain/Spain-in-1600\" rel=\"nofollow\">https://www.britannica.com/place/Spain/Spain-in-1600</a>. <a class=\"external free\" href=\"https://www.zotero.org/groups/seshat_databank/items/itemKey/Q2FI5HX5\" rel=\"nofollow\">https://www.zotero.org/groups/seshat_databank/items/itemKey/Q2FI5HX5</a>§REF§"
        },
        {
            "id": 59,
            "polity": {
                "id": 208,
                "name": "et_aksum_emp_1",
                "long_name": "Axum I",
                "start_year": -149,
                "end_year": 349
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Aksum depended on highland agriculture.§REF§(Hatke 2013) George Hatke. 2013. Aksum and Nubia: Warfare, Commerce, and Political Fictions in Ancient Northeast Africa (Institute for the Study of the Ancient World). New York University Press.§REF§ \"the heartland of the Aksumite state lay in an area with a strong agricultural resource base in cereals, other crops, and livestock.\"§REF§(Connah 2016, 147) Graham Connah. 2016. African Civilizations: An Archaeological Perspective. Third Edition. Cambridge University Press. Cambridge.§REF§ \"the peasants who used the irrigation and terraced agricultural land had to pay for it.\"§REF§(Falola 2002, 60) Toyin Falola. 2002. Key Events in African History: A Reference Guide. Greenwood Publishing Group. Westport.§REF§ Aksum \"had people with skills in tropical agriculture, as well as skills in terracing and irrigating desert land. Many farmers exploited the fertile foothills and valleys of Tigre and Amhara.\"§REF§(Falola 2002, 60) Toyin Falola. 2002. Key Events in African History: A Reference Guide. Greenwood Publishing Group. Westport.§REF§ \"The mountain slopes were terraced and irrigated by the water of mountain streams channelled into the fields.\"§REF§(Kobishanov 1981, 383) Y M. Kobishanov. Aksum: political system, economics and culture, first to fourth century.  Muḥammad Jamal al-Din Mokhtar. ed. 1981. UNESCO General History of Africa. Volume II. Heinemann. UNESCO. California.§REF§ \"In the foot-hills and on the plains, cisterns and dams were constructed as reservoirs for rainwater and irrigation canals were dug.\"§REF§(Kobishanov 1981, 383) Y M. Kobishanov. Aksum: political system, economics and culture, first to fourth century.  Muḥammad Jamal al-Din Mokhtar. ed. 1981. UNESCO General History of Africa. Volume II. Heinemann. UNESCO. California.§REF§"
        },
        {
            "id": 60,
            "polity": {
                "id": 57,
                "name": "fm_truk_1",
                "long_name": "Chuuk - Early Truk",
                "start_year": 1775,
                "end_year": 1886
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "absent",
            "comment": null,
            "description": " Traditionally, swidden farming was the norm: 'In the past, swidden gardens with dry taro, turmeric, and sugar cane were few and small. Breadfruit, supplemented by wet taro, was the staple. Being seasonal, breadfruit was preserved by fermenting in pits. Copra has become the only export. Fishing was important.' §REF§Goodenough, Ward and Skoggard 1999) Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/5IETI75E\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/5IETI75E</a>.§REF§"
        },
        {
            "id": 61,
            "polity": {
                "id": 58,
                "name": "fm_truk_2",
                "long_name": "Chuuk - Late Truk",
                "start_year": 1886,
                "end_year": 1948
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "absent",
            "comment": null,
            "description": " Traditionally, swidden farming was the norm: 'In the past, swidden gardens with dry taro, turmeric, and sugar cane were few and small. Breadfruit, supplemented by wet taro, was the staple. Being seasonal, breadfruit was preserved by fermenting in pits. Copra has become the only export. Fishing was important.' §REF§Goodenough, Ward H. and Skoggard, Ian: eHRAF Cultural Summary for the Chuuk§REF§ The following seems to suggest that plantations were more common on other islands: 'Some of the more capable and ambitious students eventually came to recognize these advantages of a Japanese education for themselves. In addition, some of the more adventurous boys in the higher elementary school cherished the hope of getting to visit distant places by their school work. They hoped good studying might lead to their acceptance in the Carpentry School at Palau, or to a job as labor foreman in a mine or plantation on some far island.' §REF§Fischer, John L. 1961. “Japanese Schools For The Natives Of Truk, Caroline Islands”, 86§REF§"
        },
        {
            "id": 62,
            "polity": {
                "id": 448,
                "name": "fr_atlantic_complex",
                "long_name": "Atlantic Complex",
                "start_year": -2200,
                "end_year": -1000
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Coded as present for primitive irrigation systems on Beaker Culture."
        },
        {
            "id": 63,
            "polity": {
                "id": 447,
                "name": "fr_beaker_eba",
                "long_name": "Beaker Culture",
                "start_year": -3200,
                "end_year": -2000
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " \"In the Mediterranean area, transhumance was very important, but in other areas, such as Central Europe, Great Britain, and the Southeast of the Iberian peninsula, production was based on intensive agriculture, thanks to the generalization of some innovations such as the plow, the carts drawn by animals, and a primitive system of irrigation.\" §REF§(Clop Garcia in Peregrine and Ember 2001, 26)§REF§"
        },
        {
            "id": 64,
            "polity": {
                "id": 460,
                "name": "fr_bourbon_k_1",
                "long_name": "French Kingdom - Early Bourbon",
                "start_year": 1589,
                "end_year": 1660
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " §REF§(Heller 2002, 170)§REF§"
        },
        {
            "id": 65,
            "polity": {
                "id": 461,
                "name": "fr_bourbon_k_2",
                "long_name": "French Kingdom - Late Bourbon",
                "start_year": 1660,
                "end_year": 1815
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 66,
            "polity": {
                "id": 457,
                "name": "fr_capetian_k_1",
                "long_name": "Proto-French Kingdom",
                "start_year": 987,
                "end_year": 1150
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Irrigation canals. §REF§(Glick, Steven Livesey and Wallis 2014, 115)§REF§"
        },
        {
            "id": 67,
            "polity": {
                "id": 458,
                "name": "fr_capetian_k_2",
                "long_name": "French Kingdom - Late Capetian",
                "start_year": 1150,
                "end_year": 1328
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Irrigation canals. §REF§(Glick, Steven Livesey and Wallis 2014, 115)§REF§ (from 10th century?). 12th and 13th centuries flaz and hemp cultivated from networks of shallow canals. §REF§(Glick, Steven Livesey and Wallis 2014, 115)§REF§"
        },
        {
            "id": 68,
            "polity": {
                "id": 309,
                "name": "fr_carolingian_emp_1",
                "long_name": "Carolingian Empire I",
                "start_year": 752,
                "end_year": 840
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "absent",
            "comment": null,
            "description": " although there were some private initiatives"
        },
        {
            "id": 69,
            "polity": {
                "id": 311,
                "name": "fr_carolingian_emp_2",
                "long_name": "Carolingian Empire II",
                "start_year": 840,
                "end_year": 987
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Irrigation canals §REF§(Glick, Steven Livesey and Wallis 2014, 115)§REF§ (from 10th century?)"
        },
        {
            "id": 70,
            "polity": {
                "id": 449,
                "name": "fr_hallstatt_a_b1",
                "long_name": "Hallstatt A-B1",
                "start_year": -1000,
                "end_year": -900
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "unknown",
            "comment": null,
            "description": " <br> previous code: inferred present | primitive irrigation system known from Beaker culture. \"Silo\" present during this time period. §REF§(<a class=\"external free\" href=\"http://www.chronocarto.ens.fr/gcserver/atlas#\" rel=\"nofollow\">http://www.chronocarto.ens.fr/gcserver/atlas#</a>)§REF§ Does this refer to food storage? Surplus production might also indicate irrigation systems. <i>DH: is there evidence or reason to believe Beaker irrigation, if existed, remained?</i>"
        },
        {
            "id": 71,
            "polity": {
                "id": 450,
                "name": "fr_hallstatt_b2_3",
                "long_name": "Hallstatt B2-3",
                "start_year": -900,
                "end_year": -700
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 72,
            "polity": {
                "id": 451,
                "name": "fr_hallstatt_c",
                "long_name": "Hallstatt C",
                "start_year": -700,
                "end_year": -600
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "unknown",
            "comment": null,
            "description": " <br> previous code: inferred present | primitive irrigation system known from Beaker culture. \"Silo\" present during this time period. §REF§(<a class=\"external free\" href=\"http://www.chronocarto.ens.fr/gcserver/atlas#\" rel=\"nofollow\">http://www.chronocarto.ens.fr/gcserver/atlas#</a>)§REF§ Does this refer to food storage? Surplus production might also indicate irrigation systems."
        },
        {
            "id": 73,
            "polity": {
                "id": 452,
                "name": "fr_hallstatt_d",
                "long_name": "Hallstatt D",
                "start_year": -600,
                "end_year": -475
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "unknown",
            "comment": null,
            "description": " <br> previous code: inferred present | primitive irrigation system known from Beaker culture. \"Silo\" present during this time period. §REF§(<a class=\"external free\" href=\"http://www.chronocarto.ens.fr/gcserver/atlas#\" rel=\"nofollow\">http://www.chronocarto.ens.fr/gcserver/atlas#</a>)§REF§ Does this refer to food storage? Surplus production might also indicate irrigation systems."
        },
        {
            "id": 74,
            "polity": {
                "id": 304,
                "name": "fr_merovingian_emp_1",
                "long_name": "Early Merovingian",
                "start_year": 481,
                "end_year": 543
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Bishops dug irrigation canals. §REF§(<a class=\"external free\" href=\"http://oll.libertyfund.org/titles/thierry-the-historical-essays-and-narratives-of-the-merovingian-era\" rel=\"nofollow\">http://oll.libertyfund.org/titles/thierry-the-historical-essays-and-narratives-of-the-merovingian-era</a>)§REF§ The king was Christian and many bishops owed their position to the king. If bishops dug irrigation canals then they are partly working on behalf of the king."
        },
        {
            "id": 75,
            "polity": {
                "id": 456,
                "name": "fr_merovingian_emp_3",
                "long_name": "Proto-Carolingian",
                "start_year": 687,
                "end_year": 751
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Bishops dug irrigation canals. §REF§(<a class=\"external free\" href=\"http://oll.libertyfund.org/titles/thierry-the-historical-essays-and-narratives-of-the-merovingian-era\" rel=\"nofollow\">http://oll.libertyfund.org/titles/thierry-the-historical-essays-and-narratives-of-the-merovingian-era</a>)§REF§ The king was Christian and many bishops owed their position to the king. If bishops dug irrigation canals then they are partly working on behalf of the king."
        },
        {
            "id": 76,
            "polity": {
                "id": 306,
                "name": "fr_merovingian_emp_2",
                "long_name": "Middle Merovingian",
                "start_year": 543,
                "end_year": 687
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Bishops dug irrigation canals. §REF§(<a class=\"external free\" href=\"http://oll.libertyfund.org/titles/thierry-the-historical-essays-and-narratives-of-the-merovingian-era\" rel=\"nofollow\">http://oll.libertyfund.org/titles/thierry-the-historical-essays-and-narratives-of-the-merovingian-era</a>)§REF§ The king was Christian and many bishops owed their position to the king. If bishops dug irrigation canals then they are partly working on behalf of the king."
        },
        {
            "id": 77,
            "polity": {
                "id": 453,
                "name": "fr_la_tene_a_b1",
                "long_name": "La Tene A-B1",
                "start_year": -475,
                "end_year": -325
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "unknown",
            "comment": null,
            "description": " <br> previous code: inferred present | primitive irrigation system known from Beaker culture. \"Silo\" present during this time period. §REF§(<a class=\"external free\" href=\"http://www.chronocarto.ens.fr/gcserver/atlas#\" rel=\"nofollow\">http://www.chronocarto.ens.fr/gcserver/atlas#</a>)§REF§ Does this refer to food storage? Surplus production might also indicate irrigation systems. <i>DH: is there evidence or reason to believe Beaker irrigation, if existed, remained?</i>"
        },
        {
            "id": 78,
            "polity": {
                "id": 454,
                "name": "fr_la_tene_b2_c1",
                "long_name": "La Tene B2-C1",
                "start_year": -325,
                "end_year": -175
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 79,
            "polity": {
                "id": 455,
                "name": "fr_la_tene_c2_d",
                "long_name": "La Tene C2-D",
                "start_year": -175,
                "end_year": -27
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "unknown",
            "comment": null,
            "description": " <br> previous code: inferred present | primitive irrigation system known from Beaker culture. \"Silo\" present during this time period. §REF§(<a class=\"external free\" href=\"http://www.chronocarto.ens.fr/gcserver/atlas#\" rel=\"nofollow\">http://www.chronocarto.ens.fr/gcserver/atlas#</a>)§REF§ Does this refer to food storage? Surplus production might also indicate irrigation systems. <i>DH: is there evidence or reason to believe Beaker irrigation, if existed, remained?</i>"
        },
        {
            "id": 80,
            "polity": {
                "id": 333,
                "name": "fr_valois_k_1",
                "long_name": "French Kingdom - Early Valois",
                "start_year": 1328,
                "end_year": 1450
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Irrigation canals. §REF§(Glick, Steven Livesey and Wallis 2014, 115)§REF§ (from 10th century?) 12th and 13th centuries flaz and hemp cultivated from networks of shallow canals. §REF§(Glick, Steven Livesey and Wallis 2014, 115)§REF§"
        },
        {
            "id": 81,
            "polity": {
                "id": 459,
                "name": "fr_valois_k_2",
                "long_name": "French Kingdom - Late Valois",
                "start_year": 1450,
                "end_year": 1589
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Water-mills.§REF§(Heller 2002, 170)§REF§"
        },
        {
            "id": 82,
            "polity": null,
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 83,
            "polity": {
                "id": 113,
                "name": "gh_akan",
                "long_name": "Akan - Pre-Ashanti",
                "start_year": 1501,
                "end_year": 1701
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "absent",
            "comment": null,
            "description": " This is unclear for the sources reviewed for this time period. The sources reviewed so far do not describe any publicly managed irrigation systems."
        },
        {
            "id": 84,
            "polity": {
                "id": 114,
                "name": "gh_ashanti_emp",
                "long_name": "Ashanti Empire",
                "start_year": 1701,
                "end_year": 1895
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "absent",
            "comment": null,
            "description": " The sources reviewed so far do not describe any publicly managed irrigation systems."
        },
        {
            "id": 85,
            "polity": {
                "id": 67,
                "name": "gr_crete_archaic",
                "long_name": "Archaic Crete",
                "start_year": -710,
                "end_year": -500
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 86,
            "polity": {
                "id": 68,
                "name": "gr_crete_classical",
                "long_name": "Classical Crete",
                "start_year": -500,
                "end_year": -323
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 87,
            "polity": {
                "id": 74,
                "name": "gr_crete_emirate",
                "long_name": "The Emirate of Crete",
                "start_year": 824,
                "end_year": 961
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " There are no archaeological data. Irrigation systems thought existed both in Byzantine and Islamic world."
        },
        {
            "id": 88,
            "polity": {
                "id": 66,
                "name": "gr_crete_geometric",
                "long_name": "Geometric Crete",
                "start_year": -1000,
                "end_year": -710
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 89,
            "polity": {
                "id": 69,
                "name": "gr_crete_hellenistic",
                "long_name": "Hellenistic Crete",
                "start_year": -323,
                "end_year": -69
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 90,
            "polity": {
                "id": 62,
                "name": "gr_crete_new_palace",
                "long_name": "New Palace Crete",
                "start_year": -1700,
                "end_year": -1450
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 91,
            "polity": {
                "id": 61,
                "name": "gr_crete_old_palace",
                "long_name": "Old Palace Crete",
                "start_year": -1900,
                "end_year": -1700
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 92,
            "polity": {
                "id": 60,
                "name": "gr_crete_pre_palace",
                "long_name": "Prepalatial Crete",
                "start_year": -3000,
                "end_year": -1900
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 93,
            "polity": {
                "id": 17,
                "name": "us_hawaii_1",
                "long_name": "Hawaii I",
                "start_year": 1000,
                "end_year": 1200
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "absent",
            "comment": null,
            "description": " Referring to Ancestral Polynesian society: \"But the development of large-scale terracing, canal networks, and the like were technological elaborations that would accompany much later stages in the transformation of Polynesian societies.\" §REF§(Kirch &amp; Green 2001, 131)§REF§"
        },
        {
            "id": 94,
            "polity": {
                "id": 18,
                "name": "us_hawaii_2",
                "long_name": "Hawaii II",
                "start_year": 1200,
                "end_year": 1580
            },
            "year_from": 1200,
            "year_to": 1390,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "absent",
            "comment": null,
            "description": " This was the period during which intensive irrigation began. It continued to be expanded and intensified into the historical period§REF§Kirch, P. V. 1985. Feathered Gods and Fishhooks: An Introduction to Hawaiian Archaeology and Prehistory. Honolulu: University of Hawaii Press. Pp. 223, 303.§REF§. However, for environmental reasons, the Big Island did not have as extensive irrigation as the other islands in the Hawaiian archipelago§REF§Kirch, P. V. 2000. On the Road of the Winds: An Archaeological History of the Pacific Islands Before European Contact. Berkeley: University of California Press. Pg. 295.§REF§. According to oral history, two men from a chiefly lineage were exiled from O’ahu and traveled to the Big Island, bringing with them their knowledge of irrigation. They used their knowledge to develop irrigation in the valley of Waipi’o, but their works were soon destroyed by a flood§REF§Kirch, P. V. 2010.  How Chiefs Became Kings: Divine Kingship and the Rise of Archaic States in Ancient Hawai’i. Berkeley: University of California Press. Pg. 85.§REF§. Oral history more generally states that irrigation began to intensify c. 1390CE, the end of the age of voyaging§REF§Kirch, P. V. 2010.  How Chiefs Became Kings: Divine Kingship and the Rise of Archaic States in Ancient Hawai’i. Berkeley: University of California Press. Pg. 92.§REF§"
        },
        {
            "id": 95,
            "polity": {
                "id": 18,
                "name": "us_hawaii_2",
                "long_name": "Hawaii II",
                "start_year": 1200,
                "end_year": 1580
            },
            "year_from": 1390,
            "year_to": 1580,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " This was the period during which intensive irrigation began. It continued to be expanded and intensified into the historical period§REF§Kirch, P. V. 1985. Feathered Gods and Fishhooks: An Introduction to Hawaiian Archaeology and Prehistory. Honolulu: University of Hawaii Press. Pp. 223, 303.§REF§. However, for environmental reasons, the Big Island did not have as extensive irrigation as the other islands in the Hawaiian archipelago§REF§Kirch, P. V. 2000. On the Road of the Winds: An Archaeological History of the Pacific Islands Before European Contact. Berkeley: University of California Press. Pg. 295.§REF§. According to oral history, two men from a chiefly lineage were exiled from O’ahu and traveled to the Big Island, bringing with them their knowledge of irrigation. They used their knowledge to develop irrigation in the valley of Waipi’o, but their works were soon destroyed by a flood§REF§Kirch, P. V. 2010.  How Chiefs Became Kings: Divine Kingship and the Rise of Archaic States in Ancient Hawai’i. Berkeley: University of California Press. Pg. 85.§REF§. Oral history more generally states that irrigation began to intensify c. 1390CE, the end of the age of voyaging§REF§Kirch, P. V. 2010.  How Chiefs Became Kings: Divine Kingship and the Rise of Archaic States in Ancient Hawai’i. Berkeley: University of California Press. Pg. 92.§REF§"
        },
        {
            "id": 96,
            "polity": {
                "id": 19,
                "name": "us_hawaii_3",
                "long_name": "Hawaii III",
                "start_year": 1580,
                "end_year": 1778
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " Irrigation infrastructure was extensive, including water-diversion walls for dryland agriculture§REF§Kirch, P. V. 1985. Feathered Gods and Fishhooks: An Introduction to Hawaiian Archaeology and Prehistory. Honolulu: University of Hawaii Press. Pp. 171-5.§REF§ and pondfields for taro§REF§Kirch, P. V. 1985. Feathered Gods and Fishhooks: An Introduction to Hawaiian Archaeology and Prehistory. Honolulu: University of Hawaii Press. Pg. 218.§REF§. Irrigation was utilized in Kohala and Hāmākua valleys on the Big Island§REF§Kirch, P. V. 1985. Feathered Gods and Fishhooks: An Introduction to Hawaiian Archaeology and Prehistory. Honolulu: University of Hawaii Press. Pg. 220.§REF§. These irrigation systems were certainly “public” as only a chief commanded the labor necessary to construct such large works."
        },
        {
            "id": 97,
            "polity": {
                "id": 153,
                "name": "id_iban_1",
                "long_name": "Iban - Pre-Brooke",
                "start_year": 1650,
                "end_year": 1841
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "absent",
            "comment": null,
            "description": null
        },
        {
            "id": 98,
            "polity": {
                "id": 154,
                "name": "id_iban_2",
                "long_name": "Iban - Brooke Raj and Colonial",
                "start_year": 1841,
                "end_year": 1987
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "absent",
            "comment": null,
            "description": null
        },
        {
            "id": 99,
            "polity": {
                "id": 46,
                "name": "id_buni",
                "long_name": "Java - Buni Culture",
                "start_year": -400,
                "end_year": 500
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " §REF§(Ooi 2004, 584)§REF§"
        },
        {
            "id": 100,
            "polity": {
                "id": 47,
                "name": "id_kalingga_k",
                "long_name": "Kalingga Kingdom",
                "start_year": 500,
                "end_year": 732
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Irrigation_system",
            "irrigation_system": "present",
            "comment": null,
            "description": " At the onset of the next period: \"Like Sanjaya, initially the Sailendra leaders were rakrayan, or regional leaders, rulers of a watak that integrated village clusters (wanua) participating in a regional irrigation and/or otherwise networked society. As rakrayan, these earliest Sailendra rulers provided the political stability necessary to maintain the local irrigation and marketing networks, and through their patronage of Indic religion they constructed sacred cults to legitimize the regional integration of wanua into watak.\" §REF§(Hall 2011, 123)§REF§"
        }
    ]
}