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In page Joseph O'Doherty:

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In the aftermath of the Easter Rising of 1916, the Sinn Féin party (founded by Arthur Griffith in 1905), was reorganised and grew into a nation-wide movement, calling for abstention from Westminster and the establishment of a separate and independent Irish parliament. The party contested the 14 December 1918 general election, called following the dissolution of the British Parliament, and swept the country winning 73 of the 105 Irish seats.