A viewset for viewing and editing Drinking Water Supply Systems.

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    "count": 398,
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        {
            "id": 151,
            "polity": {
                "id": 183,
                "name": "it_roman_rep_2",
                "long_name": "Middle Roman Republic",
                "start_year": -264,
                "end_year": -133
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " The Aqua Marcia aqueduct was built between 144-140 BCE."
        },
        {
            "id": 152,
            "polity": {
                "id": 70,
                "name": "it_roman_principate",
                "long_name": "Roman Empire - Principate",
                "start_year": -31,
                "end_year": 284
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " At Rome nearly all aqueducts begin in Sabine Hills, in the valley of the river Anio. Waters, such as from the (previously built) Aqua Marcia, would take 15-20 hours to reach the city. At the city the water would enter a distribution tank, before travelling through the terracota or lead-pipe network. The best evidence for piped urban water networking has been found at Pompeii. The water had three main destinations: street fountains, baths and domestic. Most Romans gained their fresh water from street fountains. For domestic use, water supply was controlled by size of bronze nozzle (adjutage) that connected the masonry channel to the lead pipe that entered the house. Domestic water was probably paid for with a \"water tax\". §REF§(Evans 2013, <a class=\"external autonumber\" href=\"http://books.google.co.uk/books?id=lY9BXrGjxXAC&amp;pg=PT340&amp;dq=drinking+water+supply+roman+republic&amp;hl=en&amp;sa=X&amp;ei=a5nlUdngEOKl0wW0t4HwDg&amp;ved=0CDMQ6AEwAA\" rel=\"nofollow\">[24]</a>)§REF§ Arsinoe, metropolis in Egypt (capital town of a nome) \"had running water supplied by two reservoirs into which water was pumped from an arm of the Nile.\" §REF§(Peacock 2000, 416)§REF§ By the 3rd century CE, there were 11 aqueduct lines into Rome §REF§(Canciello 2005)§REF§ which we can infer required maintenance. Under Claudius (41-54 CE) Aqua Claudius and Anio Novis were built with a gradient which fell several inches every 100 feet. Tunnels were precisely angled and key stone arch used for 6 mile column of arches that carried water into Rome. Waters were distributed to public drinking fountains, public baths and other buildings, and to wealthy Romans who paid for running water §REF§(Canciello 2005)§REF§."
        },
        {
            "id": 153,
            "polity": {
                "id": 181,
                "name": "it_roman_k",
                "long_name": "Roman Kingdom",
                "start_year": -716,
                "end_year": -509
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "absent",
            "comment": null,
            "description": " A pipe network that connects the drinking water to individual settlements is not known to exist / not thought to be present. First aqueduct commissioned by Appius Claudius Caecus 312 BCE. \"The wall, made from blocks of volcanic tuff, appeared to have been built to channel water from an aquifer under the Capitoline hill\" §REF§(Hooper, J. Sunday 13 April 2014 17.38 BST. \"Archaeologists' findings may prove Rome a century older than thought\" The Guardian. <a class=\"external free\" href=\"http://www.theguardian.com/world/2014/apr/13/archaelogists-find-rome-century-older-than-thought\" rel=\"nofollow\">http://www.theguardian.com/world/2014/apr/13/archaelogists-find-rome-century-older-than-thought</a>)§REF§"
        },
        {
            "id": 154,
            "polity": {
                "id": 185,
                "name": "it_western_roman_emp",
                "long_name": "Western Roman Empire - Late Antiquity",
                "start_year": 395,
                "end_year": 476
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": null
        },
        {
            "id": 155,
            "polity": {
                "id": 188,
                "name": "it_st_peter_rep_1",
                "long_name": "Republic of St Peter I",
                "start_year": 752,
                "end_year": 904
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " Water channels used for fresh water in Early Medieval Italy. However, not necessarily built by state. \"From the fourth century onward, in fact, water evergetism in the peninsular survived by assuming new forms. Much as was the case in ninth-century Le Mans, in late antique Italy bishops replaced secular builders of aqueducts. Indeed, by Aldric's day, Italy had developed a distinguished tradition of episcopal involvement in urban water supply. §REF§(Squatriti 2002, 13) Paolo Squatriti. 2002. Water and Society in Early Medieval Italy, AD 400-1000. Cambridge University Press.§REF§ In 770s CE Pope Hadrian restored four ancient aqueducts §REF§(Squatriti 2002, 14)§REF§ Aqueduct waters made available outside church compound. Rome, Benevento, Milan benefited from aqueducts in eighth century. Byzantine Ravenna and Naples had maintained aqueducts to eighth century. §REF§(Squatriti 2002, 14-16)§REF§ Aqueduct maintenance became a Papal responsibility by end of seventh century. §REF§(Partner 1972, 9)§REF§"
        },
        {
            "id": 156,
            "polity": {
                "id": 544,
                "name": "it_venetian_rep_3",
                "long_name": "Republic of Venice III",
                "start_year": 1204,
                "end_year": 1563
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " \"Yes, for centuries, the Venetians developed a providential design of their own destiny: only God could allow life to thrive in the midst of salt water. ... For centuries, the community gave no priority to efforts at coastal defense. It was necessary to build, create, and beautify, to organize the supply of drinking water. Here the rare documentary evidence is consistent with the narrative sources. The city thus initially focused on growing and resolving day by day the difficulties related to the site.\" §REF§(Crouzet-Pavan 2014, 38) Elisabeth Crouzet-Pavan. Venice and Its Surroundings. Eric Dursteler. ed. 2014. A Companion to Venetian History, 1400-1797. BRILL. Leiden.§REF§"
        },
        {
            "id": 157,
            "polity": {
                "id": 545,
                "name": "it_venetian_rep_4",
                "long_name": "Republic of Venice IV",
                "start_year": 1564,
                "end_year": 1797
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " \"Yes, for centuries, the Venetians developed a providential design of their own destiny: only God could allow life to thrive in the midst of salt water. ... For centuries, the community gave no priority to efforts at coastal defense. It was necessary to build, create, and beautify, to organize the supply of drinking water. Here the rare documentary evidence is consistent with the narrative sources. The city thus initially focused on growing and resolving day by day the difficulties related to the site.\" §REF§(Crouzet-Pavan 2014, 38) Elisabeth Crouzet-Pavan. Venice and Its Surroundings. Eric Dursteler. ed. 2014. A Companion to Venetian History, 1400-1797. BRILL. Leiden.§REF§"
        },
        {
            "id": 158,
            "polity": {
                "id": 149,
                "name": "jp_ashikaga",
                "long_name": "Ashikaga Shogunate",
                "start_year": 1336,
                "end_year": 1467
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " 'with the building of the castle towns from the late sixteenth century on, water supply systems were constructed in various regions, no longer primarily for irrigation but to supply drinking water to urban populations. §REF§ine  Cambridge University Press [sixth edition]. Young, Michiko. 2007. The Art of Japanese Architecture. Tuttle Publishing.p.148§REF§"
        },
        {
            "id": 159,
            "polity": {
                "id": 151,
                "name": "jp_azuchi_momoyama",
                "long_name": "Japan - Azuchi-Momoyama",
                "start_year": 1568,
                "end_year": 1603
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " 'The period when any particular water supply system was constructed also had a lot to do with its design. A great many of the water supply systems that were laid out during the final decades of the sixteenth century or in the early seventeenth century were constructed principally to provide water to the moats that surrounded the castle or to the canals that functioned both as defensive moats and as sources of drinking water.'§REF§McClain, James L., John M. Merriman, and Kaoru Ugawa, (eds.) 1997. Edo and Paris: Urban Life and the State in the Early Modern Era. Cornell University Press.p.241§REF§"
        },
        {
            "id": 160,
            "polity": {
                "id": 147,
                "name": "jp_heian",
                "long_name": "Heian",
                "start_year": 794,
                "end_year": 1185
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "absent",
            "comment": null,
            "description": " drinking water was provided from wells, rivers etc."
        },
        {
            "id": 161,
            "polity": {
                "id": 138,
                "name": "jp_jomon_1",
                "long_name": "Japan - Incipient Jomon",
                "start_year": -13600,
                "end_year": -9200
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "absent",
            "comment": null,
            "description": null
        },
        {
            "id": 162,
            "polity": {
                "id": 139,
                "name": "jp_jomon_2",
                "long_name": "Japan - Initial Jomon",
                "start_year": -9200,
                "end_year": -5300
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 163,
            "polity": {
                "id": 140,
                "name": "jp_jomon_3",
                "long_name": "Japan - Early Jomon",
                "start_year": -5300,
                "end_year": -3500
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 164,
            "polity": {
                "id": 141,
                "name": "jp_jomon_4",
                "long_name": "Japan - Middle Jomon",
                "start_year": -3500,
                "end_year": -2500
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 165,
            "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": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 166,
            "polity": {
                "id": 263,
                "name": "jp_nara",
                "long_name": "Nara Kingdom",
                "start_year": 710,
                "end_year": 794
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "absent",
            "comment": null,
            "description": " drinking water was provided from wells, rivers etc."
        },
        {
            "id": 167,
            "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": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": " present for preceding period but is the kind of costly infrastructure that could be quickly lost in difficult times."
        },
        {
            "id": 168,
            "polity": {
                "id": 152,
                "name": "jp_tokugawa_shogunate",
                "long_name": "Tokugawa Shogunate",
                "start_year": 1603,
                "end_year": 1868
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": "§REF§Totman, Conrad. 1993. Early Modern Japan. University of California Press. Berkeley; London.p.66.§REF§ ‘early in the Tokugawa period, when Edo was growing rapidly, an elaborate water supply system was created that drew on rivers and ponds in the hinterland to the west... the water was distributed through a complex system of channels and ditches in the overland portion and then underground through a main conduit of stone and secondary lines of wooden planks with bamboo tubes which led to individual shallow wells where people could get buckets of water. These waterworks were initially built by the shogunate at its own expense, but later the coast of maintaining the system was almost entirely shifted onto the merchants and artisans who used it.’§REF§Sorensen, André. 2005. The Making of Urban Japan: Cities and Planning from Edo to the Twenty First Century. Routledge.p.41§REF§"
        },
        {
            "id": 169,
            "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": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " Residents of Central Asian cities \"including slaves, had good access to running water\"§REF§(Starr 2013) Starr, S. Frederick. 2013. Lost Enlightenment: Central Asia's Golden Age from the Arab Conquest to Tamerlane. Princeton University Press. Princeton.§REF§ \"Within the cities the maze of underground pipes of baked clay that served public baths and private homes became yet more complex, for they included valves, catch basins, and access points for cleaning, as well as exceedingly complex changes of gradients. ... intricate underground pipe systems that provided urban dwellings with potable water.\"§REF§(Starr 2013) Starr, S. Frederick. 2013. Lost Enlightenment: Central Asia's Golden Age from the Arab Conquest to Tamerlane. Princeton University Press. Princeton.§REF§ In one of the Kara-Khanid capitals, Balasagun: \"In the area of this outer ring stood at least five semi-urban estates, large walled compounds with dozens of rooms and broad central corridors up to a hundred feet in length. Running water, baths, and under-the-floor heating systems rendered these multistoried estates very comfortable, even by modern standards.\"§REF§(Starr 2013) Starr, S. Frederick. 2013. Lost Enlightenment: Central Asia's Golden Age from the Arab Conquest to Tamerlane. Princeton University Press. Princeton.§REF§ \"Archaeologists have discovered ceramic water pipes\"§REF§(Davidovich 1997, 148) Davidovich, E A. in Asimov, M S and Bosworth, C E eds. 1997. History of Civilizations of Central Asia. Volume IV. Part I. UNESCO.§REF§"
        },
        {
            "id": 170,
            "polity": {
                "id": 41,
                "name": "kh_angkor_2",
                "long_name": "Classical Angkor",
                "start_year": 1100,
                "end_year": 1220
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " ‘The importance of preserving this watershed as a source of water for the rice paddies and to fill the city’s transportation canals and municipal water system was clearly understood by the earliest inhabitants of the area’ §REF§(Engelhardt 1995, p.19)§REF§ ‘Each water-based feature fulfilled several functions. Barays provided agricultural and domestic water, and fish and plant foods. Canals channeled water for public sanitation, and transport arteries. Embankments and dikes were usually oriented east-west following the contours and acted both as levees ti control floods and elevated causeways for roads. Moats surrounding temples, monuments, and inhabited areas also fulfilled several functions: they served as sacred boundaries, they were a source of domestic water and food, and they provided fill for foundations to raise the level of the terrain for drainage and protection. Access to domestic water was provided by tanks and basins dug into the water table.’§REF§(Engelhardt 1995, p.25)§REF§ 'More recently, a similar pattern was identified in the spacing of rectangular water tanks (trapeang) at four or five kilometre intervals along most of the Angkorian roads (Hendrickson 2004). This combined information points to an elaborate road network with a centrally-planned infrastructure to support the regular movement of people across a region'§REF§(Hendrickson 2012, p.86)§REF§<br>'As the population in chiefly urban centers grew, so steps had to be taken to conserve and reticulate water. This was achieved by digging circular moats around settlements and allowing water to flow into the rice fields beyond. It is likely that such a system was used only to maintain the absence of wet season rains, and the moats would have also supplied the populace with water, defines, and aquatic food.'§REF§(Hingham 2012, p. 184)§REF§"
        },
        {
            "id": 171,
            "polity": {
                "id": 40,
                "name": "kh_angkor_1",
                "long_name": "Early Angkor",
                "start_year": 802,
                "end_year": 1100
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " ‘The importance of preserving this watershed as a source of water for the rice paddies and to fill the city’s transportation canals and municipal water system was clearly understood by the earliest inhabitants of the area’ §REF§(Engelhardt 1995, p.19)§REF§ ‘Each water-based feature fulfilled several functions. Barays provided agricultural and domestic water, and fish and plant foods. Canals channeled water for public sanitation, and transport arteries. Embankments and dikes were usually oriented east-west following the contours and acted both as levees ti control floods and elevated causeways for roads. Moats surrounding temples, monuments, and inhabited areas also fulfilled several functions: they served as sacred boundaries, they were a source of domestic water and food, and they provided fill for foundations to raise the level of the terrain for drainage and protection. Access to domestic water was provided by tanks and basins dug into the water table.’§REF§(Engelhardt 1995, p.25)§REF§ 'More recently, a similar pattern was identified in the spacing of rectangular water tanks (trapeang) at four or five kilometre intervals along most of the Angkorian roads (Hendrickson 2004). This combined information points to an elaborate road network with a centrally-planned infrastructure to support the regular movement of people across a region'§REF§(Hendrickson 2012, p.86)§REF§ 'As the population in chiefly urban centers grew, so steps had to be taken to conserve and reticulate water. This was achieved by digging circular moats around settlements and allowing water to flow into the rice fields beyond. It is likely that such a system was used only to maintain the absence of wet season rains, and the moats would have also supplied the populace with water, defines, and aquatic food.'§REF§(Hingham 2012, p. 184)§REF§"
        },
        {
            "id": 172,
            "polity": {
                "id": 42,
                "name": "kh_angkor_3",
                "long_name": "Late Angkor",
                "start_year": 1220,
                "end_year": 1432
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " ‘The importance of preserving this watershed as a source of water for the rice paddies and to fill the city’s transportation canals and municipal water system was clearly understood by the earliest inhabitants of the area’ §REF§(Engelhardt 1995, p.19)§REF§ ‘Each water-based feature fulfilled several functions. Barays provided agricultural and domestic water, and fish and plant foods. Canals channeled water for public sanitation, and transport arteries. Embankments and dikes were usually oriented east-west following the contours and acted both as levees ti control floods and elevated causeways for roads. Moats surrounding temples, monuments, and inhabited areas also fulfilled several functions: they served as sacred boundaries, they were a source of domestic water and food, and they provided fill for foundations to raise the level of the terrain for drainage and protection. Access to domestic water was provided by tanks and basins dug into the water table.’§REF§(Engelhardt 1995, p.25)§REF§ 'More recently, a similar pattern was identified in the spacing of rectangular water tanks (trapeang) at four or five kilometre intervals along most of the Angkorian roads (Hendrickson 2004). This combined information points to an elaborate road network with a centrally-planned infrastructure to support the regular movement of people across a region'§REF§(Hendrickson 2012, p.86)§REF§ 'As the population in chiefly urban centers grew, so steps had to be taken to conserve and reticulate water. This was achieved by digging circular moats around settlements and allowing water to flow into the rice fields beyond. It is likely that such a system was used only to maintain the absence of wet season rains, and the moats would have also supplied the populace with water, defines, and aquatic food.'§REF§(Hingham 2012, p. 184)§REF§"
        },
        {
            "id": 173,
            "polity": {
                "id": 43,
                "name": "kh_khmer_k",
                "long_name": "Khmer Kingdom",
                "start_year": 1432,
                "end_year": 1594
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " ‘The importance of preserving this watershed as a source of water for the rice paddies and to fill the city’s transportation canals and municipal water system was clearly understood by the earliest inhabitants of the area’ §REF§(Engelhardt 1995, p.19)§REF§ ‘Each water-based feature fulfilled several functions. Barays provided agricultural and domestic water, and fish and plant foods. Canals channeled water for public sanitation, and transport arteries. Embankments and dikes were usually oriented east-west following the contours and acted both as levees ti control floods and elevated causeways for roads. Moats surrounding temples, monuments, and inhabited areas also fulfilled several functions: they served as sacred boundaries, they were a source of domestic water and food, and they provided fill for foundations to raise the level of the terrain for drainage and protection. Access to domestic water was provided by tanks and basins dug into the water table.’§REF§(Engelhardt 1995, p.25)§REF§ 'More recently, a similar pattern was identified in the spacing of rectangular water tanks (trapeang) at four or five kilometre intervals along most of the Angkorian roads (Hendrickson 2004). This combined information points to an elaborate road network with a centrally-planned infrastructure to support the regular movement of people across a region'§REF§(Hendrickson 2012, p.86)§REF§ 'As the population in chiefly urban centers grew, so steps had to be taken to conserve and reticulate water. This was achieved by digging circular moats around settlements and allowing water to flow into the rice fields beyond. It is likely that such a system was used only to maintain the absence of wet season rains, and the moats would have also supplied the populace with water, defines, and aquatic food.'§REF§(Hingham 2012, p. 184)§REF§"
        },
        {
            "id": 174,
            "polity": {
                "id": 39,
                "name": "kh_chenla",
                "long_name": "Chenla",
                "start_year": 550,
                "end_year": 825
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " 'While there is no evidence of large-scale irrigation projects during this period, 'what may have represented small-scale irrigation was carried out at the level of the local communities, under the leadership of local upon and other chiefs. [...] [N]o remains of large hydraulic works have been discovered for the period between Funan and Angkor. Evidence that some organized digging occurred for water management or fish capture, is in the numerous references to trapan, artificial ponds.'§REF§(Vickery 1998,  306)§REF§ 'The largest and best-documented centre was known as Isanapura, the city of Isanavarman. It is dominated by three walled precincts containing brick temples and sunken pools. The inscriptions record a dynasty of kings, including Isanavarman himself, who ruled there during the early seventh century. The site also includes a large rectangular reservoir, and rice field boundaries lie beyond the limits of this centre (Shimoda 2010). A description of the court of this period has survived in a compilation by the Chinese historian Ma Duanlin (1883), who mentioned a palace, guards, a large populace and regular royal audiences.'§REF§(Higham 2014,  830)§REF§ 'These [reservoirs] were probably multi-purpose, involving supplying the moats, religious foundations and urban populace with water, and for irrigating rice fields.'§REF§(Higham 2014b,  291)§REF§"
        },
        {
            "id": 175,
            "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": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " 'The Liangshu also notes that \"Where they live, they do not dig wells. In groups of several tens of families they have a pond in common where they draw water.\" [...].'§REF§(Jacques and Lafond 2007, p. 51)§REF§ 'The manipulation of water has a long history in South- east Asia. This reflects the monsoon climate, with its sharp contrast between the wet and the dry seasons. In the former, there is a superabundance of water in the lowlands, and flooding is widespread. During the latter, months can go by without any rainfall. This pattern encouraged communities, as they grew in size and popu- lation numbers, to control water flows, usually by build- ing up earthen dikes to form reservoirs. These banks ring many large Iron Age sites, and where dated, fall within 1 to 400 C.E. During the life of the states of FUNAN and CHENLA, water was retained in rectangular reservoirs known as BARAYS. None was large enough to have any influence on rice production, but they could have satis- fied domestic needs, as well as fulfilled a symbolic role as the oceans that surround the mythical home of the Hindu gods.'§REF§(Higham 2004, p. 162)§REF§"
        },
        {
            "id": 176,
            "polity": {
                "id": 38,
                "name": "kh_funan_2",
                "long_name": "Funan II",
                "start_year": 540,
                "end_year": 640
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " 'The Liangshu also notes that \"Where they live, they do not dig wells. In groups of several tens of families they have a pond in common where they draw water.\" [...].'§REF§(Jacques and Lafond 2007, p. 51)§REF§ 'The manipulation of water has a long history in South-east Asia. This reflects the monsoon climate, with its sharp contrast between the wet and the dry seasons. In the former, there is a superabundance of water in the lowlands, and flooding is widespread. During the latter, months can go by without any rainfall. This pattern encouraged communities, as they grew in size and popu- lation numbers, to control water flows, usually by building up earthen dikes to form reservoirs. These banks ring many large Iron Age sites, and where dated, fall within 1 to 400 C.E. During the life of the states of FUNAN and CHENLA, water was retained in rectangular reservoirs known as BARAYS. None was large enough to have any influence on rice production, but they could have satis- fied domestic needs, as well as fulfilled a symbolic role as the oceans that surround the mythical home of the Hindu gods.'§REF§(Higham 2004, p. 162)§REF§"
        },
        {
            "id": 177,
            "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": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": " Not mentioned in sources."
        },
        {
            "id": 178,
            "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": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 179,
            "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": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " \"In most instances, fresh water was secured from local sources, such as rivers or springs. Where local supply was insufficient for population needs, as at Tyre, water was piped in or otherwise physically imported. When necessary, existing supply was augmented by excavated wells, or built, lime-plastered cisterns (<i>cf.</i> Tyre and Awad).\"§REF§Markoe (2000:69).§REF§"
        },
        {
            "id": 180,
            "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": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 181,
            "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": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 182,
            "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": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 183,
            "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": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "absent",
            "comment": null,
            "description": null
        },
        {
            "id": 184,
            "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": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 185,
            "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": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 186,
            "polity": {
                "id": 242,
                "name": "ml_songhai_2",
                "long_name": "Songhai Empire - Askiya Dynasty",
                "start_year": 1493,
                "end_year": 1591
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 187,
            "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": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 188,
            "polity": {
                "id": 288,
                "name": "mn_khitan_1",
                "long_name": "Khitan I",
                "start_year": 907,
                "end_year": 1125
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 189,
            "polity": {
                "id": 442,
                "name": "mn_mongol_early",
                "long_name": "Early Mongols",
                "start_year": 1000,
                "end_year": 1206
            },
            "year_from": null,
            "year_to": null,
            "tag": "TRS",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "absent",
            "comment": null,
            "description": null
        },
        {
            "id": 190,
            "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": "Drinking_water_supply_system",
            "drinking_water_supply_system": "absent",
            "comment": null,
            "description": null
        },
        {
            "id": 191,
            "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": "Drinking_water_supply_system",
            "drinking_water_supply_system": "absent",
            "comment": null,
            "description": null
        },
        {
            "id": 192,
            "polity": {
                "id": 286,
                "name": "mn_uygur_khaganate",
                "long_name": "Uigur Khaganate",
                "start_year": 745,
                "end_year": 840
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 193,
            "polity": {
                "id": 438,
                "name": "mn_xianbei",
                "long_name": "Xianbei Confederation",
                "start_year": 100,
                "end_year": 250
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 194,
            "polity": {
                "id": 437,
                "name": "mn_hunnu_early",
                "long_name": "Early Xiongnu",
                "start_year": -1400,
                "end_year": -300
            },
            "year_from": null,
            "year_to": null,
            "tag": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "absent",
            "comment": null,
            "description": " Not enough data, though it seems to reasonable infer absence."
        },
        {
            "id": 195,
            "polity": {
                "id": 274,
                "name": "mn_hunnu_late",
                "long_name": "Late Xiongnu",
                "start_year": -60,
                "end_year": 100
            },
            "year_from": null,
            "year_to": null,
            "tag": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 196,
            "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": "SSP",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "unknown",
            "comment": null,
            "description": null
        },
        {
            "id": 197,
            "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": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "absent",
            "comment": null,
            "description": " Only wells. \"The city of Ghana consists of two towns situated on a plain. ... In the environs are wells...\"§REF§(Al-Bakri 1068 CE in Levtzion and Spaulding 2003, 15)§REF§"
        },
        {
            "id": 198,
            "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": "IFR",
            "is_disputed": false,
            "is_uncertain": false,
            "name": "Drinking_water_supply_system",
            "drinking_water_supply_system": "absent",
            "comment": null,
            "description": " Only wells. \"The city of Ghana consists of two towns situated on a plain. ... In the environs are wells...\"§REF§(Al-Bakri 1068 CE in Levtzion and Spaulding 2003, 15)§REF§"
        },
        {
            "id": 199,
            "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": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": " A wall was built to dam a reservoir in the northern section of Monte Alban.§REF§Flannery, K. V. and J. Marcus (1983). \"The Cloud People.\" New York, p85§REF§"
        },
        {
            "id": 200,
            "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": "Drinking_water_supply_system",
            "drinking_water_supply_system": "present",
            "comment": null,
            "description": "A wall was built to dam a reservoir in the northern section of Monte Alban.§REF§Flannery, K. V. and J. Marcus (1983). \"The Cloud People.\" New York, p85§REF§"
        }
    ]
}