The US signed the Equal Pay Act to reduce the difference in pay between sexes.
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Swedish company Saab, previously known for making aircraft, produced their first automobile.
NASA's Explorer 49 was launched into Earth's orbit to research long-range radio waves within the Milky Way.
Alcoholics Anonymous was founded in Akron, Ohio.
The Great Arab Revolt against the Ottoman Empire led by Lawrence of Arabia was initiated in Mecca.
In London, the Millenium Bridge closed for safety checks following large crowds, which caused the bridge to start swaying.