Wikipedia:Selected anniversaries/July 9
On July 9:
- 1816 - Argentina declared independence from Spain
- 1900 - Victoria of the United Kingdom gave royal assent to an act creating the Commonwealth of Australia thus uniting separate colonies on the continent under one federal government.
- 1922 - Johnny Weissmuller swam the 100 meters freestyle in 58.6 seconds breaking a world swimming record and the 'minute barrier'.
- 1942 - Holocaust: Anne Frank's family went into hiding in an attic above her father's office in an Amsterdam warehouse.
- 1992 - Bill Clinton chose Tennessee senator Al Gore as his running mate.