Onsøy
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Onsøy is a peninsula and a former municipality in Østfold county, Norway. The administrative centre was Gressvik.
It was created as Onsøy formannskapsdistrikt in 1837. A part of Onsøy with 170 inhabitants was moved to the neighboring municipality Fredrikstad on 1 January 1968.
On 1 January 1994 the rest of Onsøy was incorporated into Fredrikstad. Prior to the merger Onsøy had a population of 12.923.
[edit] The name
The Old Norse form of the name was Óðinsøy. The first element is the genitive case of the name of the god Odin, the last element is øy f 'island'. (The former island was later turned into a peninsula because of post-glacial rebound.)
[edit] References
- Dag Jukvam / Statistics Norway (1999). "Historisk oversikt over endringer i kommune- og fylkesinndelingen".
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