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Ireland has been occupied by humans at least 10,000 years ago by people migrating from what is now northern Spain. The Celtic invasion theories are now being questioned in light of new DNA studies.

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Ireland was invated Celts c. 500 B.C. The arrival of the Anglo-Normans in the 1200s began the connection with England and ultimately it was joined with Great Britain in 1801. After the war of independence (1919-1921) the island was split into the independent Irish Free State (now the Republic of Ireland) and Northern Ireland, which is still part of Great Britain.

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14y ago

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