A viewset for viewing and editing Coppers.

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{
    "count": 338,
    "next": "https://seshat-db.com/api/wf/coppers/?format=api&page=4",
    "previous": "https://seshat-db.com/api/wf/coppers/?format=api&page=2",
    "results": [
        {
            "id": 101,
            "polity": {
                "id": 110,
                "name": "il_judea",
                "long_name": "Yehuda",
                "start_year": -141,
                "end_year": -63
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 102,
            "polity": {
                "id": 105,
                "name": "il_yisrael",
                "long_name": "Yisrael",
                "start_year": -1030,
                "end_year": -722
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " In the Levant, in Israel iron replaced bronze for utilitarian objects by 900 BCE§REF§(McNutt 1999, 163) Paula M McNutt. 1999. Reconstructing the Society of Ancient Israel. Westminister John Knox Press. Louisville.§REF§ and data from this time shows both bronze and iron weapons were being used.§REF§(Gabriel 2003, 117) Gabriel, Richard. 2003. The Military History of Ancient Israel. Westport: Praeger Publishers§REF§"
        },
        {
            "id": 103,
            "polity": {
                "id": 416,
                "name": "in_ayodhya_k",
                "long_name": "Kingdom of Ayodhya",
                "start_year": -64,
                "end_year": 34
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 104,
            "polity": {
                "id": 92,
                "name": "in_badami_chalukya_emp",
                "long_name": "Chalukyas of Badami",
                "start_year": 543,
                "end_year": 753
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Metal armour was used for both warriors and horses §REF§D.P. Dikshit, Political History of the Chalukyas (1980), p. 266§REF§. Type of metal not specified. <i>Likely used primarily for ornamental reasons.</i>"
        },
        {
            "id": 105,
            "polity": {
                "id": 94,
                "name": "in_kalyani_chalukya_emp",
                "long_name": "Chalukyas of Kalyani",
                "start_year": 973,
                "end_year": 1189
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 106,
            "polity": {
                "id": 86,
                "name": "in_deccan_ia",
                "long_name": "Deccan - Iron Age",
                "start_year": -1200,
                "end_year": -300
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " ‘Before 600 BC, warfare in India consisted of duels among the Kshatriya aristocrats in chariots and cow lifting raids carried out by tribal militias’. Kshatriya charioteers wore helmets made of metal §REF§(Roy 2013) Kaushik Roy. 2013 Military Manpower, Armies and Warfare in South Asia. Number 8. Routledge. Abingdon.§REF§, presumably of copper."
        },
        {
            "id": 107,
            "polity": {
                "id": 88,
                "name": "in_post_mauryan_k",
                "long_name": "Post-Mauryan Kingdoms",
                "start_year": -205,
                "end_year": -101
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " ‘Before 600 BC, warfare in India consisted of duels among the Kshatriya aristocrats in chariots and cow lifting raids carried out by tribal militias’. Kshatriya charioteers wore helmets made of metal §REF§(Roy 2013) Kaushik Roy. 2013 Military Manpower, Armies and Warfare in South Asia. Number 8. Routledge. Abingdon.§REF§, presumably of copper."
        },
        {
            "id": 108,
            "polity": {
                "id": 85,
                "name": "in_deccan_nl",
                "long_name": "Deccan - Neolithic",
                "start_year": -2700,
                "end_year": -1200
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " \"The people of the South Indian Neolithic Culture (1700-1100 BCE) \"used polish stone celts and axes on a larger scale than was the case in the Deccan Chalcolithic. ... produced slender chalcedony blades ... The use of copper was on a restricted scale.\" §REF§(Shinde and Deshpande 2002, 345) Vasant Shinde. Shweta Sinha Deshpande. South Indian Chalcolithic. Deccan Chalcolithic, South Indian Neolithic. Peter N. Peregrine. Melvin Ember. eds. 2002. Encyclopedia of Prehistory. Volume 8: South and Southwest Asia. Springer. Boston. pp 344-360.§REF§ Copper swords associated with the Chalcolithic culture of the Karnataka region \"with the time when 'Jorwe' influences were reaching there from the north. This we suggested dated from 1400-1500 BC.'\" §REF§(Allchin 1979, 114) F R Allchin. A South Indian Copper Sword and Its Significance. J E Van Lohuizen-De Leeuw. 1979. South Asian Archaeology 1975. From the third international conference of the Association of South Asian Archaeologists in Western Europe held in Paris. E J BRILL. Leiden.§REF§ Reference for Vedic-period India (mostly Ganges valley but may also be relevant further south) mentions copper armour: \"No material evidence exists to prove the use of body-armour, helmets and shields by the people of the Indus valley. It has been suggested, however, that domed pieces of copper, each pierced by two holes, were stitched on to a piece of cloth and used as a coat of mail.\"§REF§(Singh 1997, 91) Sarva Daman Singh. 1997 (1965). Ancient Indian Warfare: With Special Reference to the Vedic Period. Motilal Banarsidass Publishers Private Limited. Delhi.§REF§"
        },
        {
            "id": 109,
            "polity": {
                "id": 135,
                "name": "in_delhi_sultanate",
                "long_name": "Delhi Sultanate",
                "start_year": 1206,
                "end_year": 1526
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Inferred from the presence of higher metals."
        },
        {
            "id": 110,
            "polity": {
                "id": 415,
                "name": "in_ganga_ca",
                "long_name": "Chalcolithic Middle Ganga",
                "start_year": -3000,
                "end_year": -601
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " \"Over eighty copper hoards consisting of rings, celts, hatchets, swords, harpoons, spearheads, and human-like figures have been found in a wide area ranging from West Bengal and Orissa in the east to Gujarat and Haryana in the west, and from AP in the south to UP in the north.\"§REF§(Sharma 2007: 71) Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/NBZAVZ3U\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/NBZAVZ3U</a>.§REF§"
        },
        {
            "id": 111,
            "polity": {
                "id": 414,
                "name": "in_ganga_nl",
                "long_name": "Neolithic Middle Ganga",
                "start_year": -7000,
                "end_year": -3001
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " \"Of 138 sites, only fourteen sites in UP and Bihar have been excavated so far and these show little use of copper.\"§REF§(Sharma 2007: 71) Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/NBZAVZ3U\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/NBZAVZ3U</a>.§REF§"
        },
        {
            "id": 112,
            "polity": {
                "id": 111,
                "name": "in_achik_1",
                "long_name": "Early A'chik",
                "start_year": 1775,
                "end_year": 1867
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "unknown",
            "comment": null,
            "description": " Expert needed. Inferences from the presence of iron cannot be made. Did they have access to copper ore? Did they external trade?"
        },
        {
            "id": 113,
            "polity": {
                "id": 112,
                "name": "in_achik_2",
                "long_name": "Late A'chik",
                "start_year": 1867,
                "end_year": 1956
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": null
        },
        {
            "id": 114,
            "polity": {
                "id": 405,
                "name": "in_gahadavala_dyn",
                "long_name": "Gahadavala Dynasty",
                "start_year": 1085,
                "end_year": 1193
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Inferred from the presence of higher metals."
        },
        {
            "id": 115,
            "polity": {
                "id": 388,
                "name": "in_gupta_emp",
                "long_name": "Gupta Empire",
                "start_year": 320,
                "end_year": 550
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Inferred from the presence of higher metals."
        },
        {
            "id": 116,
            "polity": {
                "id": 95,
                "name": "in_hoysala_k",
                "long_name": "Hoysala Kingdom",
                "start_year": 1108,
                "end_year": 1346
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " <i>Likely used primarily for ornamental reasons.</i>"
        },
        {
            "id": 117,
            "polity": {
                "id": 91,
                "name": "in_kadamba_emp",
                "long_name": "Kadamba Empire",
                "start_year": 345,
                "end_year": 550
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " <i>Probably more often used for ornamental features or for handles.</i>"
        },
        {
            "id": 118,
            "polity": {
                "id": 96,
                "name": "in_kampili_k",
                "long_name": "Kampili Kingdom",
                "start_year": 1280,
                "end_year": 1327
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " <i>Likely used primarily for ornamental reasons.</i>"
        },
        {
            "id": 119,
            "polity": {
                "id": 417,
                "name": "in_kannauj_varman_dyn",
                "long_name": "Kannauj - Varman Dynasty",
                "start_year": 650,
                "end_year": 780
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Inferred from the presence of higher metals."
        },
        {
            "id": 120,
            "polity": {
                "id": 390,
                "name": "in_magadha_k",
                "long_name": "Magadha",
                "start_year": 450,
                "end_year": 605
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Inferred from the presence of higher metals."
        },
        {
            "id": 121,
            "polity": {
                "id": 87,
                "name": "in_mauryan_emp",
                "long_name": "Magadha - Maurya Empire",
                "start_year": -324,
                "end_year": -187
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 122,
            "polity": {
                "id": 98,
                "name": "in_mughal_emp",
                "long_name": "Mughal Empire",
                "start_year": 1526,
                "end_year": 1858
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Armor included iron and copper mail (mighfar), and elephant armor could be made of high iron or brass plates. In addition, guns were made of bronze and brass. §REF§Gommans, J. J. L. 2002. Mughal Warfare: Indian frontiers and high roads to Empire, 1500-1700. London: Routledge, p199, 125, 133.§REF§§REF§William Irvine, The army of the Indian Moghuls: its organization and administration (1903),pp. 90-102§REF§"
        },
        {
            "id": 123,
            "polity": {
                "id": 93,
                "name": "in_rashtrakuta_emp",
                "long_name": "Rashtrakuta Empire",
                "start_year": 753,
                "end_year": 973
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Inferred from the presence of higher metals. <i>Likely used primarily for ornamental reasons.</i>"
        },
        {
            "id": 124,
            "polity": {
                "id": 89,
                "name": "in_satavahana_emp",
                "long_name": "Satavahana Empire",
                "start_year": -100,
                "end_year": 200
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " A military historian suggests metal armour was not widely used before the Macedonian invasion of Alexander the Great in the late fourth century BCE §REF§(Gabriel 2002, 219) Gabriel, Richard A. 2002. The Great Armies of Antiquity. Greenwood Publishing Group.§REF§ - do ancient Indian specialists agree? <i>Copper weapons did exist but by this time probably replaced by iron, steel or bronze.</i>"
        },
        {
            "id": 125,
            "polity": {
                "id": 385,
                "name": "in_sunga_emp",
                "long_name": "Magadha - Sunga Empire",
                "start_year": -187,
                "end_year": -65
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 126,
            "polity": {
                "id": 90,
                "name": "in_vakataka_k",
                "long_name": "Vakataka Kingdom",
                "start_year": 255,
                "end_year": 550
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " A military historian suggests that metal armour was not widely used before the Macedonian invasion of Alexander the Great in the late fourth century BCE §REF§(Gabriel 2002, 219) Gabriel, Richard A. 2002. The Great Armies of Antiquity. Greenwood Publishing Group.§REF§"
        },
        {
            "id": 127,
            "polity": {
                "id": 97,
                "name": "in_vijayanagara_emp",
                "long_name": "Vijayanagara Empire",
                "start_year": 1336,
                "end_year": 1646
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Inferred from the presence of higher metals."
        },
        {
            "id": 128,
            "polity": {
                "id": 132,
                "name": "iq_abbasid_cal_1",
                "long_name": "Abbasid Caliphate I",
                "start_year": 750,
                "end_year": 946
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": null
        },
        {
            "id": 129,
            "polity": {
                "id": 484,
                "name": "iq_abbasid_cal_2",
                "long_name": "Abbasid Caliphate II",
                "start_year": 1191,
                "end_year": 1258
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": null
        },
        {
            "id": 130,
            "polity": {
                "id": 476,
                "name": "iq_akkad_emp",
                "long_name": "Akkadian Empire",
                "start_year": -2270,
                "end_year": -2083
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": "§REF§Hamblin 2006, 77§REF§ Helmets could be made of copper.§REF§(Foster 2016, 167) Foster, Benjamin R. 2016. The Age of Agade. Inventing Empire In Ancient Mesopotamia. Routledge. London.§REF§ \"The majority of metal weaponry was likely made of arsenical copper in the first half of the 3rd millennium BCE.Tin bronzes, along with arsenical bronze alloys with a higher percentage of arsenic, are more common towards the middle of the 3rd millennium, which corresponds to the EDIII. (Moorey 1985: 250–54; Malfoy and Menu 1987: 356–59; Potts 1997: 167; De Ryck et al. 2005: 263–66).\" §REF§(Stefanski, Arthur. 2008. “The Material Culture of Early Dynastic Akkadian Period Conflict: Copper and Bronze Melee Weapons from Khafajah.” The Canadian Society for Mesopotamian Studies. 13: 15)§REF§"
        },
        {
            "id": 131,
            "polity": {
                "id": 481,
                "name": "iq_bazi_dyn",
                "long_name": "Bazi Dynasty",
                "start_year": -1005,
                "end_year": -986
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " \"It was not until iron came into widespread use in the early first millennium that swords in particular and iron weapons in general began to replace the more expensive bronze spears, arrowheads, axes, and daggers of earlier times.\"§REF§(McIntosh 2005: 190) McIntosh, J. 2005. <i>Ancient Mesopotamia: New Perspective</i>. Santa Barbara: ABC Clio. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/KK2E3KMD\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/KK2E3KMD</a>.§REF§"
        },
        {
            "id": 132,
            "polity": {
                "id": 482,
                "name": "iq_dynasty_e",
                "long_name": "Dynasty of E",
                "start_year": -979,
                "end_year": -732
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " \"It was not until iron came into widespread use in the early first millennium that swords in particular and iron weapons in general began to replace the more expensive bronze spears, arrowheads, axes, and daggers of earlier times.\"§REF§(McIntosh 2005: 190) McIntosh, J. 2005. <i>Ancient Mesopotamia: New Perspective</i>. Santa Barbara: ABC Clio. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/KK2E3KMD\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/KK2E3KMD</a>.§REF§"
        },
        {
            "id": 133,
            "polity": {
                "id": 475,
                "name": "iq_early_dynastic",
                "long_name": "Early Dynastic",
                "start_year": -2900,
                "end_year": -2500
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": "§REF§Hamblin 2006, 48§REF§"
        },
        {
            "id": 134,
            "polity": {
                "id": 480,
                "name": "iq_isin_dynasty2",
                "long_name": "Second Dynasty of Isin",
                "start_year": -1153,
                "end_year": -1027
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " \"It was not until iron came into widespread use in the early first millennium that swords in particular and iron weapons in general began to replace the more expensive bronze spears, arrowheads, axes, and daggers of earlier times.\"§REF§(McIntosh 2005: 190) McIntosh, J. 2005. <i>Ancient Mesopotamia: New Perspective</i>. Santa Barbara: ABC Clio. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/KK2E3KMD\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/KK2E3KMD</a>.§REF§"
        },
        {
            "id": 135,
            "polity": {
                "id": 478,
                "name": "iq_isin_larsa",
                "long_name": "Isin-Larsa",
                "start_year": -2004,
                "end_year": -1763
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " \"It was not until iron came into widespread use in the early first millennium that swords in particular and iron weapons in general began to replace the more expensive bronze spears, arrowheads, axes, and daggers of earlier times.\"§REF§(McIntosh 2005: 190) McIntosh, J. 2005. <i>Ancient Mesopotamia: New Perspective</i>. Santa Barbara: ABC Clio. Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/KK2E3KMD\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/KK2E3KMD</a>.§REF§"
        },
        {
            "id": 136,
            "polity": {
                "id": 106,
                "name": "iq_neo_assyrian_emp",
                "long_name": "Neo-Assyrian Empire",
                "start_year": -911,
                "end_year": -612
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Assyrians “first to recognise fully” the superiority of iron over bronze, which had been used for weapons, chariots and armour since 1100 BCE. §REF§(Dupuy and Dupuy 2007, 10)§REF§ If the Assyrians were aware of bronze technology, then they also capable of using copper, since it is needed to make bronze."
        },
        {
            "id": 137,
            "polity": {
                "id": 346,
                "name": "iq_neo_babylonian_emp",
                "long_name": "Neo-Babylonian Empire",
                "start_year": -626,
                "end_year": -539
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Present in previous and subsequent polities."
        },
        {
            "id": 138,
            "polity": {
                "id": 472,
                "name": "iq_so_mesopotamia_nl",
                "long_name": "Southern Mesopotamia Neolithic",
                "start_year": -9000,
                "end_year": -5501
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " §REF§pers. comm., Selin Nugent 2019§REF§"
        },
        {
            "id": 139,
            "polity": {
                "id": 473,
                "name": "iq_ubaid",
                "long_name": "Ubaid",
                "start_year": -5500,
                "end_year": -4000
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " \"A copper spearhead, the oldest yet discovered, was found in Mesopotamia dating to the early fifth millennium\".§REF§(Hamblin 2006: 34) Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/4WM3RBTD\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/4WM3RBTD</a>.§REF§"
        },
        {
            "id": 140,
            "polity": {
                "id": 477,
                "name": "iq_ur_dyn_3",
                "long_name": "Ur - Dynasty III",
                "start_year": -2112,
                "end_year": -2004
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Required for bronze."
        },
        {
            "id": 141,
            "polity": {
                "id": 474,
                "name": "iq_uruk",
                "long_name": "Uruk",
                "start_year": -4000,
                "end_year": -2900
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 142,
            "polity": {
                "id": 107,
                "name": "ir_achaemenid_emp",
                "long_name": "Achaemenid Empire",
                "start_year": -550,
                "end_year": -331
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Copper used to make bronze. Greek mercenaries under Cyrus had \"helmets, greaves and shields of bronze\" §REF§(Sekunda 1992, 10) Sekunda, N. 1992. The Persian Army 560-330 BC. Osprey Publishing.§REF§ \"Of the Medes and Persians as a whole, only a few wore armour. Some had body armour of iron scales ... and only some of the cavalry wore helmets of bronze or iron.\"§REF§(Robinson 1967) Robinson, H. Russell. 1967. Oriental Armour. Walker and Co. New York.§REF§"
        },
        {
            "id": 143,
            "polity": {
                "id": 508,
                "name": "ir_ak_koyunlu",
                "long_name": "Ak Koyunlu",
                "start_year": 1339,
                "end_year": 1501
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 144,
            "polity": {
                "id": 487,
                "name": "ir_susiana_archaic",
                "long_name": "Susiana - Muhammad Jaffar",
                "start_year": -7000,
                "end_year": -6000
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " Technology not found in archaeological evidence until much later"
        },
        {
            "id": 145,
            "polity": {
                "id": 495,
                "name": "ir_elam_1",
                "long_name": "Elam - Awan Dynasty I",
                "start_year": -2675,
                "end_year": -2100
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Copper/bronze arrowheads, daggers and knives in tombs at Susa.§REF§(Potts 2016, 89) Potts, D T. 2016. The Archaeology of Elam Formation and Transformation of an Ancient Iranian State. 2nd Edition. Cambridge University Press. Cambridge.§REF§ \"The majority of metal weaponry was likely made of arsenical copper in the first half of the 3rd millennium BCE. Tin bronzes, along with arsenical bronze alloys with a higher percentage of arsenic, are more common towards the middle of the 3rd millennium, which corresponds to the EDIII (Moorey 1985: 250–54; Malfoy and Menu 1987: 356–59; Potts 1997: 167; De Ryck et al. 2005: 263–66).\" §REF§(Stefanski, Arthur. 2008. “The Material Culture of Early Dynastic Akkadian Period Conflict: Copper and Bronze Melee Weapons from Khafajah.” The Canadian Society for Mesopotamian Studies. 13: 16)§REF§"
        },
        {
            "id": 146,
            "polity": {
                "id": 362,
                "name": "ir_buyid_confederation",
                "long_name": "Buyid Confederation",
                "start_year": 932,
                "end_year": 1062
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 147,
            "polity": {
                "id": 502,
                "name": "ir_elam_8",
                "long_name": "Elam - Crisis Period",
                "start_year": -1100,
                "end_year": -900
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Coded as present as the following has been found for a time frame in the region covering this polity: copper and bronze weapons found in graves §REF§Michael D. Danti, ‘The Late Bronze and Early Iron Age in Northwestern Iran’, In Daniel T. Potts (ed.), The Oxford Handbook of Ancient Iran, 2013, p. 347§REF§"
        },
        {
            "id": 148,
            "polity": {
                "id": 507,
                "name": "ir_elymais_2",
                "long_name": "Elymais II",
                "start_year": 25,
                "end_year": 215
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Confirmed for the Parthians."
        },
        {
            "id": 149,
            "polity": {
                "id": 486,
                "name": "ir_susiana_formative",
                "long_name": "Formative Period",
                "start_year": -7200,
                "end_year": -7000
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " Technology not found in archaeological evidence until much later"
        },
        {
            "id": 150,
            "polity": {
                "id": 172,
                "name": "ir_il_khanate",
                "long_name": "Ilkhanate",
                "start_year": 1256,
                "end_year": 1339
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " present in preceding Mongol polity"
        }
    ]
}