The Kalmar Union between Denmark, Norway and Sweden came to an end on 6 June 1523.
Theodore left Rome for Canterbury on 27 May 668.
The pioneering archaeologist and Oxbridge’s first woman professor, Dorothy Garrod was elected to the Chair of Archaeology on 6 May 1939.
Father Secchi demonstrated his water quality disk to the pope on 20 April 1865.
A chivalric form of planned battle took place on 26 March 1351.
The conspirators who planned to assassinate the Prime Minister and his Cabinet were arrested on 23 February 1820.
On 23 January 1795, William of Orange's fleet, stuck in frozen waters of the Zuiderzee, was attacked by the French cavalry.
The Riot Act was read to young officers at West Point Military Academy on 25 December 1826, following a boisterous party which began the night before.
The mysterious prisoner died at the Bastille on 19 November 1703.
On 8 October 1856, a British flagged Chinese vessel was seized and the Second Opium War began.