{
  "system" : "China Historical GIS, Harvard University and Fudan University",
  "license" : "CC BY-NC 4.0",
  "uri" : "https://chgis.hudci.org/tgaz/placename/hvd_34116",
  "sys_id" : "hvd_34116",
  "sys_id of alternate" : "",
  "spellings" : [
    {
      "written form" : "開陽郡",
      "script" : "traditional Chinese",
      "exonym language" : "",
      "attested by" : "",
      "note" : ""
    },
    {
      "written form" : "开阳郡",
      "script" : "simplified Chinese",
      "exonym language" : "",
      "attested by" : "",
      "note" : ""
    },
    {
      "written form" : "Kaiyang Jun",
      "transcribed in" : "Pinyin",
      "attested by" : "",
      "note" : ""
    }
  ],
  "feature_type" : {
    "name" : "郡",
    "alternate name" : "郡",
    "transcription" : "jun",
    "English" : "commandery"
  },
  "temporal" : {
    "begin" : "742",
    "begin rule" : "4",
    "end" : "757",
    "end rule" : "4"
  },
  "spatial" : {
    "object_type" : "POINT",
    "xy_type" : "point",
    "latitude" : "22.54706",
    "longitude" : "111.43831",
    "source" : "FROM_AC",
    "present_location" : [
      {
        "country code" : "cn",
        "text" : "广东省罗定县罗镜镇",
        "source" : "Fudan",
        "attestation" : ""
      }
    ]
  },
  "historical_context" : {
    "part of" : [
      {
        "begin year" : "742",
        "end year" : "755",
        "parent id" : "hvd_113618",
        "name" : "唐",
        "transcribed" : "Tang"
      },
      {
        "begin year" : "756",
        "end year" : "757",
        "parent id" : "hvd_30185",
        "name" : "岭南节度使",
        "transcribed" : "Lingnan Jiedus"
      }
    ],
    "subordinate units" : [
      {
        "begin_year" : "742",
        "end_year" : "756",
        "child id" : "hvd_42639",
        "name" : "安南县",
        "transcribed" : "Annan Xian"
      },
      {
        "begin_year" : "742",
        "end_year" : "757",
        "child id" : "hvd_42636",
        "name" : "建水县",
        "transcribed" : "Jianshui Xian"
      },
      {
        "begin_year" : "742",
        "end_year" : "757",
        "child id" : "hvd_42642",
        "name" : "开阳县",
        "transcribed" : "Kaiyang Xian"
      },
      {
        "begin_year" : "742",
        "end_year" : "757",
        "child id" : "hvd_42631",
        "name" : "泷水县",
        "transcribed" : "Longshui Xian"
      },
      {
        "begin_year" : "757",
        "end_year" : "757",
        "child id" : "hvd_42640",
        "name" : "镇南县",
        "transcribed" : "Zhennan Xian"
      }
    ],
    "preceded by" : [
      {
        "preceded by id" : "hvd_34115",
        "name" : "泷州",
        "transcribed" : "Long Zhou"
      }
    ]
  },
  "data source" : "CHGIS",
  "source note" : "<html><body>开阳郡（742-757年）治所和界线<br><br>唐天宝元年（742年）以泷州改名（1）。领泷水、开阳、永宁、安南等县。州治泷水县，治所即今广东省罗定县罗镜镇。辖境相当今广东省罗定县和信宜县蚊子坑、凤凰岭、怀乡街、湘垌、石人顶、坑尾一线以东北地区，云浮县都骑、大云雾山以西地区（2）。乾元元年（758年）复为泷州（3）。<br><br>————————————————————<br>（1），《旧唐书》卷41?岭南道?泷州：“隋永熙郡之泷水县。武德四年，平萧铣，置泷州。天宝元年改为开阳郡治。乾元元年复为泷州。”泷水县：“州所治。汉端溪县地，属苍梧郡。晋分端溪立泷乡，即今治。梁分广熙郡置建州，又分建州之双头洞立双州。隋改泷乡为平原县，又改为泷水。”开阳县：“隋废县。武德四年分泷水置。”永宁县：“武德四年，于安遂县置药州，领安遂、永宁、安南、永业四县。贞观中，废药州，以永宁属泷州。本隋永熙县，武德五年，改为永宁县。”镇南县：“隋安南县。至德二年九月，改为镇南。”建水县：“新置。”（北京，中华书局，1975年，5册，1720页）。<br>（2），据所领新旧县治故址，并参考宣统元年《广东舆地全图》，辖境相当今广东省罗定县和信宜县蚊子坑、凤凰岭、怀乡街、湘垌、石人顶、坑尾一线以东北地区，云浮县都骑、大云雾山以西地区。<br>（3），见注（1）。</body></html>",
  "source uri" : ""
}