Sodegaura-machi(12481) and Hirakawa-machi(12482) are merged, and Sodegaura-machi in Kimitsu-gun is newly established.

袖ケ浦町(12481)、平川町(12482)が合併し、袖ケ浦町を新設

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

http://data.e-stat.go.jp/lod/sac/C12481-19700401

http://data.e-stat.go.jp/lod/sac/C12481-19711103

http://data.e-stat.go.jp/lod/sac/C12482-19700401

http://data.e-stat.go.jp/lod/sac/C12482-19711103

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

1971-11-03 ^^http://www.w3.org/2001/XMLSchema#date