Urayasu-machi(12301) in Higashikatsushika-gun is changed to Urayasu-shi(12227).

浦安町(12301)が浦安市(12227)に市制施行

262

http://data.e-stat.go.jp/lod/terms/sacs#CodeChangeEvent

http://data.e-stat.go.jp/lod/sac/C12227-19810401

http://data.e-stat.go.jp/lod/sac/C12301-19700401

http://data.e-stat.go.jp/lod/sac/C12301-19810401

http://data.e-stat.go.jp/lod/sacr/changesToCity

1981-04-01 ^^http://www.w3.org/2001/XMLSchema#date