- 1793 21 Jan Louis XVI, King of France is executed at the guillotine in Paris, following his conviction for treason.
- 1919 21 Jan Sinn Fein creates its own parliament (dáil eireann) in Dublin, sparking the Irish War of Independence.
- 1954 21 Jan The world's first nuclear-powered submarine, the USS 'Nautilus', is launched on the Thames, Connecticut.
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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