{
  "system" : "China Historical GIS, Harvard University and Fudan University",
  "license" : "CC BY-NC 4.0",
  "uri" : "http://tgaz.fudan.edu.cn/tgaz/placename/hvd_70270",
  "sys_id" : "hvd_70270",
  "sys_id of alternate" : "",
  "spellings" : [
    {
      "written form" : "龍泉縣",
      "script" : "traditional Chinese",
      "exonym language" : "",
      "attested by" : "",
      "note" : ""
    },
    {
      "written form" : "龙泉县",
      "script" : "simplified Chinese",
      "exonym language" : "",
      "attested by" : "",
      "note" : ""
    },
    {
      "written form" : "Longquan Xian",
      "transcribed in" : "Pinyin",
      "attested by" : "",
      "note" : ""
    }
  ],
  "feature_type" : {
    "name" : "县",
    "alternate name" : "縣",
    "transcription" : "xian",
    "English" : "county"
  },
  "temporal" : {
    "begin" : "742",
    "begin rule" : "4",
    "end" : "906",
    "end rule" : "2"
  },
  "spatial" : {
    "object_type" : "POINT",
    "xy_type" : "point",
    "latitude" : "37.50098",
    "longitude" : "110.25407",
    "source" : "FROM_AC",
    "present_location" : [
      {
        "country code" : "cn",
        "text" : "今陕西绥德县城",
        "source" : "Fudan",
        "attestation" : ""
      }
    ]
  },
  "historical_context" : {
    "part of" : [
    ],
    "subordinate units" : [
    ],
    "preceded by" : [
      {
        "preceded by id" : "hvd_70269",
        "name" : "上县",
        "transcribed" : "Shang Xian"
      }
    ]
  },
  "data source" : "CHGIS",
  "source note" : "龙泉县（742-906）

唐天宝元年（742 ）改上县为龙泉县，①属上郡，乾元元年属绥州。②五代为西夏所据，县废。	③治今绥德县城。④

注： 
	①《旧唐书》卷38?志第十八：地理一?绥州，龙泉，隋曰上县。天宝元年，改为龙泉。（中华书局，1975 年，5 册，1412 页）
②《旧唐书》卷38?志第十八：地理一?绥州，隋雕阴郡。武德三年，于延州丰林县置绥州总管府，领西和、南平、北基、银、云、贞、上、殄、北吉、匡、龙等十一州。其绥州领上、大斌、城平、绥德、延福五县。六年，移治所于延州延川县界。七年，又移治城平县界魏平废城。贞观二年，平梁师都，罢都督府，移州治上县。天宝元年，改为上郡。乾元元年，复为绥州。（中华书局，1975 年，5 册，1412 页）
③《读史方舆纪要》卷57?陕西六：绥德州?龙泉废县，……宋为夏人所据，县遂废。（中华书局，2005 年，6 册，2741 页）
④《嘉庆重修一统志》卷250?绥德直隶州：古迹?上县故城，今州治。（《四部丛刊续编》，商务印书馆，1934 年，16 册）",
  "source uri" : ""
}