diff --git a/history.json b/history.json
index 1b1180a..5dd1c87 100644
--- a/history.json
+++ b/history.json
@@ -5566,8 +5566,6 @@
 "512200":"万县地区",
 "512201":"万县市",
 "512202":"市中区",
-"512200":"万县地区",
-"512201":"万县市",
 "512221":"万县",
 "512222":"开县",
 "512223":"忠县",