Wikipedia:Selected anniversaries/July 1
On July 1:
- 1867 - Canada Day: Province of Canada, New Brunswick, and Nova Scotia united in Confederation.
- 1904 - The first Olympic Games held in North America opened in St. Louis, USA.
- 1980 - O Canada officially became the national anthem of Canada.
- 1991 - The Warsaw Pact was officially dissolved.
- 1997 - The United Kingdom ceded Hong Kong to the People's Republic of China.