1509 - Henry VIII ascended to the throne upon the death of his father Henry VII.
1659 - Lord protector Cromwell disbanded the English parliament.
1899 - At high noon, thousands rush to claim land in the American Land Rush of 1889. Within hours the cities of Oklahoma City and Guthrie were formed with populations of at least 10,000.
1915 - The use of poison gas in World War I escalated when chlorine gas was released as a chemical weapon in the Second Battle of Ypres.
1916 - Chief of Staff of the Irish Volunteers Eóin MacNeill issued the Countermanding order in Dublin to try to stop what would become the Easter Rising.
1922 - A Glasgow magistrate ordered all barmaids should be replaced by men.
1930 - The United Kingdom, Japan and the United States signed the London Naval Treaty regulating submarine warfare and limiting shipbuilding.
1943 - Britain discontinued printing £1,000 notes.
1947 - A photo-finish camera was used for the first time, at Epsom.
1965 - Cliff Richard was at number 1 in the hit parade with ‘The Minute You’re Gone’.
1969 - The QE2 left on its maiden commercial voyage.
1969 - British yachtsman Sir Robin Knox-Johnston won the Sunday Times Golden Globe Race and completed the first solo non-stop circumnavigation of the world.
1970 - Dana was at number 1 in the hit parade with ‘All Kinds of Everything’.
1972 - The first people to row across the Pacific Ocean arrived in Australia. Sylvia Cook and John Fairfax had been at sea for 362 days.
1975 - Mud was at number 1 in the hit parade with ‘Oh Boy’.
1977 - Optical fibre was first used to carry live telephone traffic.
1977 - Simon Peres became premier of Israel.
1993 - Black teenager Stephen Lawrence was murdered in Eltham.
1999 - David Trimble became the first Ulster Unionist leader to meet the Pope at the Vatican.
2000 - The Big Number Change took place in the UK’s telephone system.