A viewset for viewing and editing Coppers.

GET /api/wf/coppers/?format=api&page=5
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 338,
    "next": "https://seshat-db.com/api/wf/coppers/?format=api&page=6",
    "previous": "https://seshat-db.com/api/wf/coppers/?format=api&page=4",
    "results": [
        {
            "id": 201,
            "polity": {
                "id": 142,
                "name": "jp_jomon_5",
                "long_name": "Japan - Late Jomon",
                "start_year": -2500,
                "end_year": -1200
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " Metalworking began in the Yayoi period §REF§(Mizoguchi 2013, 140)§REF§."
        },
        {
            "id": 202,
            "polity": {
                "id": 143,
                "name": "jp_jomon_6",
                "long_name": "Japan - Final Jomon",
                "start_year": -1200,
                "end_year": -300
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "unknown",
            "comment": null,
            "description": " Metalworking began in the Yayoi period §REF§(Mizoguchi 2013, 140)§REF§§REF§Pearson, Richard., ‘Debating Jomon Social Complexity’, Asian Perspectives: Journal of Archeology for Asia & the Pacific, Volume 46, Number 2 (Fall), 2007, pp. 360§REF§"
        },
        {
            "id": 203,
            "polity": {
                "id": 148,
                "name": "jp_kamakura",
                "long_name": "Kamakura Shogunate",
                "start_year": 1185,
                "end_year": 1333
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " required for bronze"
        },
        {
            "id": 204,
            "polity": {
                "id": 145,
                "name": "jp_kofun",
                "long_name": "Kansai - Kofun Period",
                "start_year": 250,
                "end_year": 537
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " required for bronze"
        },
        {
            "id": 205,
            "polity": {
                "id": 263,
                "name": "jp_nara",
                "long_name": "Nara Kingdom",
                "start_year": 710,
                "end_year": 794
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Bronze present but use in warfare likely minor role."
        },
        {
            "id": 206,
            "polity": {
                "id": 150,
                "name": "jp_sengoku_jidai",
                "long_name": "Warring States Japan",
                "start_year": 1467,
                "end_year": 1568
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " required for bronze"
        },
        {
            "id": 207,
            "polity": {
                "id": 152,
                "name": "jp_tokugawa_shogunate",
                "long_name": "Tokugawa Shogunate",
                "start_year": 1603,
                "end_year": 1868
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " required for bronze"
        },
        {
            "id": 208,
            "polity": {
                "id": 144,
                "name": "jp_yayoi",
                "long_name": "Kansai - Yayoi Period",
                "start_year": -300,
                "end_year": 250
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " According to a military historian, Japanese 'kuni' warriors mentioned by early Han annals \"fought with iron and bronze weapons against other kuni and other less advanced peoples, the emishi or 'toad barbarians.' on their frontiers\"§REF§(Gabriel 2002, 316) Richard A Gabriel. 2002. The Great Armies of Antiquity. Praeger. Westport.§REF§ - are these early Han annals considered a reliable source by polity/region specialists?"
        },
        {
            "id": 209,
            "polity": {
                "id": 289,
                "name": "kg_kara_khanid_dyn",
                "long_name": "Kara-Khanids",
                "start_year": 950,
                "end_year": 1212
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " 'The mass spread of iron in Central Asia is an event of the 6th-4th centuries BC. Hence it is reasonable to begin the Iron Age in Central Asia only from the second quarter of the 1st millennium BC'. §REF§Kuzmina, Elena Efimovna. 2007. The Origin of the Indo-Iranians. BRILL. p. 426§REF§"
        },
        {
            "id": 210,
            "polity": {
                "id": 282,
                "name": "kg_western_turk_khaganate",
                "long_name": "Western Turk Khaganate",
                "start_year": 582,
                "end_year": 630
            },
            "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": 211,
            "polity": {
                "id": 41,
                "name": "kh_angkor_2",
                "long_name": "Classical Angkor",
                "start_year": 1100,
                "end_year": 1220
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Bronze armor have been found and copper is needed to make bronze, so it seems reasonable to assume that copper weapons were probably used too."
        },
        {
            "id": 212,
            "polity": {
                "id": 40,
                "name": "kh_angkor_1",
                "long_name": "Early Angkor",
                "start_year": 802,
                "end_year": 1100
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Bronze armor have been found and copper is needed to make bronze, so it seems reasonable to assume that copper weapons were probably used too."
        },
        {
            "id": 213,
            "polity": {
                "id": 42,
                "name": "kh_angkor_3",
                "long_name": "Late Angkor",
                "start_year": 1220,
                "end_year": 1432
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Bronze armor has been found and copper is needed to make bronze, so it seems reasonable to assume that copper weapons were probably used too."
        },
        {
            "id": 214,
            "polity": {
                "id": 43,
                "name": "kh_khmer_k",
                "long_name": "Khmer Kingdom",
                "start_year": 1432,
                "end_year": 1594
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Bronze armor have been found and copper is needed to make bronze, so it seems reasonable to assume that copper weapons were probably used too."
        },
        {
            "id": 215,
            "polity": {
                "id": 39,
                "name": "kh_chenla",
                "long_name": "Chenla",
                "start_year": 550,
                "end_year": 825
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Bronze weapons have been found and copper is needed to make bronze, so it seems reasonable to assume that copper weapons were probably used too."
        },
        {
            "id": 216,
            "polity": {
                "id": 37,
                "name": "kh_funan_1",
                "long_name": "Funan I",
                "start_year": 225,
                "end_year": 540
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Their mortuary ritual was considerably more complex than that of the preceding Neolithic 2. Burial 569, for example, was cut deeply into the substrate, and the young woman was interred in a wooden coffin with a pointed end resembling that of a boat. Fourteen finely-made pots had been placed within and outside the coffin. She wore a shell bangle, and over 2000 shell disc beads were found as belts and necklaces. She was also interred with several probably symbolic bivalve shells, two positioned beside the hands. A socketed copper-base axe had been placed beside her head. §REF§(higham 2012: 271)§REF§"
        },
        {
            "id": 217,
            "polity": {
                "id": 38,
                "name": "kh_funan_2",
                "long_name": "Funan II",
                "start_year": 540,
                "end_year": 640
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Bronze weapons have been found and copper is needed to make bronze, so it seems reasonable to assume that copper weapons were probably used too."
        },
        {
            "id": 218,
            "polity": {
                "id": 35,
                "name": "kh_cambodia_ba",
                "long_name": "Bronze Age Cambodia",
                "start_year": -1200,
                "end_year": -501
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " We do not have any good data yet for the early development of metallurgy in the insular realm. We can, however, observe that in both areas the first advances in this new technology came in the form of adornment rather than for tools and weapons.\"§REF§(Miksic and Goh 2016: 86) Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/2EZ3CBBS\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/2EZ3CBBS</a>.§REF§"
        },
        {
            "id": 219,
            "polity": {
                "id": 36,
                "name": "kh_cambodia_ia",
                "long_name": "Iron Age Cambodia",
                "start_year": -500,
                "end_year": 224
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Evidence of bronze, gold, silver and iron.§REF§(Miksic and Goh 2016: 106) Seshat URL: <a class=\"external free\" href=\"https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/2EZ3CBBS\" rel=\"nofollow\">https://www.zotero.org/groups/1051264/seshat_databank/items/itemKey/2EZ3CBBS</a>.§REF§"
        },
        {
            "id": 220,
            "polity": {
                "id": 463,
                "name": "kz_andronovo",
                "long_name": "Andronovo",
                "start_year": -1800,
                "end_year": -1200
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " required for bronze"
        },
        {
            "id": 221,
            "polity": {
                "id": 104,
                "name": "lb_phoenician_emp",
                "long_name": "Phoenician Empire",
                "start_year": -1200,
                "end_year": -332
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 222,
            "polity": {
                "id": 432,
                "name": "ma_saadi_sultanate",
                "long_name": "Saadi Sultanate",
                "start_year": 1554,
                "end_year": 1659
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 223,
            "polity": {
                "id": 434,
                "name": "ml_bamana_k",
                "long_name": "Bamana kingdom",
                "start_year": 1712,
                "end_year": 1861
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Military leaders wielded battle axes made of special metals, including copper §REF§S.A. Djata, The Bamana kingdom by the Niger (1997), p. 17§REF§."
        },
        {
            "id": 224,
            "polity": {
                "id": 427,
                "name": "ml_jenne_jeno_1",
                "long_name": "Jenne-jeno I",
                "start_year": -250,
                "end_year": 49
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 225,
            "polity": {
                "id": 428,
                "name": "ml_jenne_jeno_2",
                "long_name": "Jenne-jeno II",
                "start_year": 50,
                "end_year": 399
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 226,
            "polity": {
                "id": 430,
                "name": "ml_jenne_jeno_3",
                "long_name": "Jenne-jeno III",
                "start_year": 400,
                "end_year": 899
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 227,
            "polity": {
                "id": 431,
                "name": "ml_jenne_jeno_4",
                "long_name": "Jenne-jeno IV",
                "start_year": 900,
                "end_year": 1300
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": null
        },
        {
            "id": 228,
            "polity": {
                "id": 229,
                "name": "ml_mali_emp",
                "long_name": "Mali Empire",
                "start_year": 1230,
                "end_year": 1410
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 229,
            "polity": {
                "id": 433,
                "name": "ml_segou_k",
                "long_name": "Segou Kingdom",
                "start_year": 1650,
                "end_year": 1712
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 230,
            "polity": {
                "id": 283,
                "name": "mn_turk_khaganate_1",
                "long_name": "Eastern Turk Khaganate",
                "start_year": 583,
                "end_year": 630
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " long been in use in the region. Majemir culture from 900 BCE is an example of one of the first iron-using cultures in the Altai region.§REF§(Baumer 2012) Baumer, Christoph. 2012. The History of Central Asia: The Age of the Steppe Warriors. I.B.Tauris. London.§REF§ and by 300 BCE in the Ordos region of Mongolia iron was becoming much more frequently used for weapons and horse fittings. §REF§(Di Cosmo 2002, 84) Nicola Di Cosmo. 2002. Ancient China and Its Enemies: The Rise of Nomadic Power in East Asian History. Cambridge University Press. Cambridge.§REF§"
        },
        {
            "id": 231,
            "polity": {
                "id": 288,
                "name": "mn_khitan_1",
                "long_name": "Khitan I",
                "start_year": 907,
                "end_year": 1125
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Majemir culture from 900 BCE is an example of one of the first iron-using cultures in the Altai region.§REF§(Baumer 2012) Baumer, Christoph. 2012. The History of Central Asia: The Age of the Steppe Warriors. I.B.Tauris. London.§REF§ and by 300 BCE in the Ordos region of Mongolia iron was becoming much more frequently used for weapons and horse fittings. §REF§(Di Cosmo 2002, 84) Nicola Di Cosmo. 2002. Ancient China and Its Enemies: The Rise of Nomadic Power in East Asian History. Cambridge University Press. Cambridge.§REF§"
        },
        {
            "id": 232,
            "polity": {
                "id": 267,
                "name": "mn_mongol_emp",
                "long_name": "Mongol Empire",
                "start_year": 1206,
                "end_year": 1270
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": "§REF§(Xie, Liye. North China Workshop 2016)§REF§"
        },
        {
            "id": 233,
            "polity": {
                "id": 442,
                "name": "mn_mongol_early",
                "long_name": "Early Mongols",
                "start_year": 1000,
                "end_year": 1206
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " long been in use in the region. Majemir culture from 900 BCE is an example of one of the first iron-using cultures in the Altai region.§REF§(Baumer 2012) Baumer, Christoph. 2012. The History of Central Asia: The Age of the Steppe Warriors. I.B.Tauris. London.§REF§ and by 300 BCE in the Ordos region of Mongolia iron was becoming much more frequently used for weapons and horse fittings. §REF§(Di Cosmo 2002, 84) Nicola Di Cosmo. 2002. Ancient China and Its Enemies: The Rise of Nomadic Power in East Asian History. Cambridge University Press. Cambridge.§REF§"
        },
        {
            "id": 234,
            "polity": {
                "id": 443,
                "name": "mn_mongol_late",
                "long_name": "Late Mongols",
                "start_year": 1368,
                "end_year": 1690
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " long been in use in the region. Majemir culture from 900 BCE is an example of one of the first iron-using cultures in the Altai region.§REF§(Baumer 2012) Baumer, Christoph. 2012. The History of Central Asia: The Age of the Steppe Warriors. I.B.Tauris. London.§REF§ and by 300 BCE in the Ordos region of Mongolia iron was becoming much more frequently used for weapons and horse fittings. §REF§(Di Cosmo 2002, 84) Nicola Di Cosmo. 2002. Ancient China and Its Enemies: The Rise of Nomadic Power in East Asian History. Cambridge University Press. Cambridge.§REF§"
        },
        {
            "id": 235,
            "polity": {
                "id": 278,
                "name": "mn_rouran_khaganate",
                "long_name": "Rouran Khaganate",
                "start_year": 300,
                "end_year": 555
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " long been in use in the region. Majemir culture from 900 BCE is an example of one of the first iron-using cultures in the Altai region.§REF§(Baumer 2012) Baumer, Christoph. 2012. The History of Central Asia: The Age of the Steppe Warriors. I.B.Tauris. London.§REF§ and by 300 BCE in the Ordos region of Mongolia iron was becoming much more frequently used for weapons and horse fittings. §REF§(Di Cosmo 2002, 84) Nicola Di Cosmo. 2002. Ancient China and Its Enemies: The Rise of Nomadic Power in East Asian History. Cambridge University Press. Cambridge.§REF§"
        },
        {
            "id": 236,
            "polity": {
                "id": 439,
                "name": "mn_shiwei",
                "long_name": "Shiwei",
                "start_year": 600,
                "end_year": 1000
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " long been in use in the region. Majemir culture from 900 BCE is an example of one of the first iron-using cultures in the Altai region.§REF§(Baumer 2012) Baumer, Christoph. 2012. The History of Central Asia: The Age of the Steppe Warriors. I.B.Tauris. London.§REF§ and by 300 BCE in the Ordos region of Mongolia iron was becoming much more frequently used for weapons and horse fittings. §REF§(Di Cosmo 2002, 84) Nicola Di Cosmo. 2002. Ancient China and Its Enemies: The Rise of Nomadic Power in East Asian History. Cambridge University Press. Cambridge.§REF§"
        },
        {
            "id": 237,
            "polity": {
                "id": 440,
                "name": "mn_turk_khaganate_2",
                "long_name": "Second Turk Khaganate",
                "start_year": 682,
                "end_year": 744
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " long been in use in the region. Majemir culture from 900 BCE is an example of one of the first iron-using cultures in the Altai region.§REF§(Baumer 2012) Baumer, Christoph. 2012. The History of Central Asia: The Age of the Steppe Warriors. I.B.Tauris. London.§REF§ and by 300 BCE in the Ordos region of Mongolia iron was becoming much more frequently used for weapons and horse fittings. §REF§(Di Cosmo 2002, 84) Nicola Di Cosmo. 2002. Ancient China and Its Enemies: The Rise of Nomadic Power in East Asian History. Cambridge University Press. Cambridge.§REF§"
        },
        {
            "id": 238,
            "polity": {
                "id": 286,
                "name": "mn_uygur_khaganate",
                "long_name": "Uigur Khaganate",
                "start_year": 745,
                "end_year": 840
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " long been in use in the region. Majemir culture from 900 BCE is an example of one of the first iron-using cultures in the Altai region.§REF§(Baumer 2012) Baumer, Christoph. 2012. The History of Central Asia: The Age of the Steppe Warriors. I.B.Tauris. London.§REF§ and by 300 BCE in the Ordos region of Mongolia iron was becoming much more frequently used for weapons and horse fittings. §REF§(Di Cosmo 2002, 84) Nicola Di Cosmo. 2002. Ancient China and Its Enemies: The Rise of Nomadic Power in East Asian History. Cambridge University Press. Cambridge.§REF§"
        },
        {
            "id": 239,
            "polity": {
                "id": 438,
                "name": "mn_xianbei",
                "long_name": "Xianbei Confederation",
                "start_year": 100,
                "end_year": 250
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Required for bronze."
        },
        {
            "id": 240,
            "polity": {
                "id": 437,
                "name": "mn_hunnu_early",
                "long_name": "Early Xiongnu",
                "start_year": -1400,
                "end_year": -300
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " \"The Ch’i-chia culture was broadly distributed, extending north and east into Inner Mongolia, the upper Yellow River Valley, and the upper Wei-he and Huang-shui River Valleys. Connected with earlier Neolithic cultures, such as the Ma-chia-yao, during the first half of the first millennium b.c., the Ch’i-chia people displayed cultural traits that were among the most advanced in China. Their bronze production was extensive, and they progressed from forging copper tools (knives, awls, chisels) to casting objects (knives and axes) in open molds to more complex casting using composite molds (mirrors and socketed axes).\" §REF§Nicola Di Cosmo. 2002. Ancient China and Its Enemies: The Rise of Nomadic Power in East Asian History. Cambridge University Press. Cambridge, p. 46§REF§"
        },
        {
            "id": 241,
            "polity": {
                "id": 274,
                "name": "mn_hunnu_late",
                "long_name": "Late Xiongnu",
                "start_year": -60,
                "end_year": 100
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Required for bronze."
        },
        {
            "id": 242,
            "polity": {
                "id": 272,
                "name": "mn_hunnu_emp",
                "long_name": "Xiongnu Imperial Confederation",
                "start_year": -209,
                "end_year": -60
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " Required for bronze."
        },
        {
            "id": 243,
            "polity": {
                "id": 444,
                "name": "mn_zungharian_emp",
                "long_name": "Zungharian Empire",
                "start_year": 1670,
                "end_year": 1757
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "present",
            "comment": null,
            "description": " \"Because of their need of weaponry the Dzungar rulers opened iron, copper and silver mines and produced spears, shields, gunpowder, cannon, bullets and iron utensils.\" §REF§(Miyawaki et al 2003, 164)§REF§"
        },
        {
            "id": 244,
            "polity": {
                "id": 224,
                "name": "mr_wagadu_3",
                "long_name": "Later Wagadu Empire",
                "start_year": 1078,
                "end_year": 1203
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 245,
            "polity": {
                "id": 216,
                "name": "mr_wagadu_2",
                "long_name": "Middle Wagadu Empire",
                "start_year": 700,
                "end_year": 1077
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 246,
            "polity": {
                "id": 525,
                "name": "mx_monte_alban_1_early",
                "long_name": "Early Monte Alban I",
                "start_year": -500,
                "end_year": -300
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " Metalworking was not widely used in Mesoamerica, with metal products consisting mainly of small beads and ornaments.§REF§Coe, M. D., Koontz, R. (2013) Mexico: From the Olmecs to the Aztecs (7th ed.) Thames and Hudson, London, p157§REF§§REF§Kowalewski, S. A., Feinman, G. M., Finten, L., Blanton, R. E., Nicholas, L. M. (1989) Monte Albán’s Hinterland, Part II: Prehispanic settlement patterns in Tlacolula, Etla, and Ocotlan, The Valley of Oaxaca, Mexico, Volume II. Memoirs of the Museum of Anthropology, University of Michigan, Number 23. Ann Arbor.§REF§"
        },
        {
            "id": 247,
            "polity": {
                "id": 526,
                "name": "mx_monte_alban_1_late",
                "long_name": "Monte Alban Late I",
                "start_year": -300,
                "end_year": -100
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " Metalworking was not widely used in Mesoamerica, with metal products consisting mainly of small beads and ornaments.§REF§Coe, M. D., Koontz, R. (2013) Mexico: From the Olmecs to the Aztecs (7th ed.) Thames and Hudson, London, p157§REF§§REF§Kowalewski, S. A., Feinman, G. M., Finten, L., Blanton, R. E., Nicholas, L. M. (1989) Monte Albán’s Hinterland, Part II: Prehispanic settlement patterns in Tlacolula, Etla, and Ocotlan, The Valley of Oaxaca, Mexico, Volume II. Memoirs of the Museum of Anthropology, University of Michigan, Number 23. Ann Arbor.§REF§"
        },
        {
            "id": 248,
            "polity": {
                "id": 527,
                "name": "mx_monte_alban_2",
                "long_name": "Monte Alban II",
                "start_year": -100,
                "end_year": 200
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " Metalworking was not widely used in Mesoamerica, with metal products consisting mainly of small beads and ornaments.§REF§Coe, M. D., Koontz, R. (2013) Mexico: From the Olmecs to the Aztecs (7th ed.) Thames and Hudson, London, p157§REF§§REF§Kowalewski, S. A., Feinman, G. M., Finten, L., Blanton, R. E., Nicholas, L. M. (1989) Monte Albán’s Hinterland, Part II: Prehispanic settlement patterns in Tlacolula, Etla, and Ocotlan, The Valley of Oaxaca, Mexico, Volume II. Memoirs of the Museum of Anthropology, University of Michigan, Number 23. Ann Arbor.§REF§"
        },
        {
            "id": 249,
            "polity": {
                "id": 528,
                "name": "mx_monte_alban_3_a",
                "long_name": "Monte Alban III",
                "start_year": 200,
                "end_year": 500
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " Metalworking was not widely used in Mesoamerica, with metal products consisting mainly of small beads and ornaments.§REF§Coe, M. D., Koontz, R. (2013) Mexico: From the Olmecs to the Aztecs (7th ed.) Thames and Hudson, London, p157§REF§§REF§Kowalewski, S. A., Feinman, G. M., Finten, L., Blanton, R. E., Nicholas, L. M. (1989) Monte Albán’s Hinterland, Part II: Prehispanic settlement patterns in Tlacolula, Etla, and Ocotlan, The Valley of Oaxaca, Mexico, Volume II. Memoirs of the Museum of Anthropology, University of Michigan, Number 23. Ann Arbor.§REF§"
        },
        {
            "id": 250,
            "polity": {
                "id": 529,
                "name": "mx_monte_alban_3_b_4",
                "long_name": "Monte Alban IIIB and IV",
                "start_year": 500,
                "end_year": 900
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Copper",
            "copper": "absent",
            "comment": null,
            "description": " Metalworking was not widely used in Mesoamerica, with metal products consisting mainly of small beads and ornaments.§REF§Coe, M. D., Koontz, R. (2013) Mexico: From the Olmecs to the Aztecs (7th ed.) Thames and Hudson, London, p157§REF§§REF§Kowalewski, S. A., Feinman, G. M., Finten, L., Blanton, R. E., Nicholas, L. M. (1989) Monte Albán’s Hinterland, Part II: Prehispanic settlement patterns in Tlacolula, Etla, and Ocotlan, The Valley of Oaxaca, Mexico, Volume II. Memoirs of the Museum of Anthropology, University of Michigan, Number 23. Ann Arbor.§REF§"
        }
    ]
}