1649 – King Charles I of England is beheaded.
1661 – Oliver Cromwell, Lord Protector of the Commonwealth of England is ritually executed two years after his death, on the anniversary of the execution of the monarch he himself deposed.
1835 – In the first assassination attempt against a President of the United States, Richard Lawrence attempts to shoot president Andrew Jackson, but fails and is subdued by a crowd, including several congressmen.
1889 – Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in Mayerling.
1956 – American civil rights leader Martin Luther King, Jr.’s home is bombed in retaliation for the Montgomery Bus Boycott.
1971 – Bloody Sunday: British Paratroopers kill fourteen unarmed civil rights/anti internment marchers in Northern Ireland.