- 1000 Battle of Svolder, Baltic Sea. King Olaf on board the Long Serpent defeated in one of the greatest naval battles of the Viking Age.
- 1776 Congress officially renames the country as the United States of America (Was the United Colonies)
- 1817 Alexander Twilight, probably first African American to graduate from a US college, receives BA degree at Middlebury College
- 1914 First fully mechanized unit in the British Army created - the Canadian Automobile Machine Gun Brigade (WWI)
- 1993 Israel and the Palestine Liberation Organization exchange letters of mutual recognition
- 2015 Queen Elizabeth II becomes Great Britain's longest-reigning monarch at 63 years and seven months, beating the previous record set by her great-great-grandmother, Queen Victoria
Mary Stuart, at nine months old, is crowned "Queen of Scots" in the central Scottish town of Stirling
On September 9, 1543