On August 18, 1964, the International Olympic Committee (IOC) barred South Africa from participating in the Summer Olympics due to the country's Apartheid policy. The nation would not be reinstated until 1992.

Learn more about the banishment of South Africa by the IOC from the BBC.

On August 18, 1920, the Nineteenth Amendment to the US Constitution, establishing women's suffrage, was ratified by the states.

Learn more about the Nineteenth Amendment.