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In page Incheon:

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Incheon was originally part of Gyeonggi Province, but was granted Directly Governed (now Metropolitan) City status on 1 July 1981; the city officially separated from the province. In 1989, neighboring islands and Gyeyang township of Gimpo County[a] were ceded to Incheon and in 1995 Geomdan township of Gimpo County and two counties of Ganghwa and Onjin were annexed to Incheon.[citation needed]