Wikipedia:Selected anniversaries/June 23
On June 23: Jani held in ancient Latvia.
- 1713 - French residents of Acadia were given one year to declare allegiance to Britain or leave Nova Scotia Canada.
- 1858 - Six-year-old Jewish boy Edgardo Mortara was seized by Papal authorities and taken to be raised as a Catholic.
- 1887 - Canada's first national park, Banff, was created.
- 1894 - The International Olympic Committee was founded at the Sorbonne in Paris.
- 1947 - U.S. President Harry S. Truman's veto of the Taft-Hartley Act was overridden by the United States Congress.