- 1683 12 Sep John III of Poland and Charles of Lorraine lift the siege of Vienna, ending Ottoman expansion in Europe.
- 1919 12 Sep The British government says the self-declared Irish parliament is illegal and bans the IRA and Sinn Fein.
- 2001 12 Sep US President George W Bush declares a 'war on terror' following the 11 September terror attacks.
World War One Centenary
- Find out more about how the BBC is covering the World War One Centenary, and see the latest programmes and online content
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