NASA’s Explorer 49 was launched into Earth’s orbit to research long-range radio waves within the Milky Way.
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Italy declared war on France and Britain.
Alcoholics Anonymous was founded in Akron, Ohio.
The US signed the Equal Pay Act to reduce the difference in pay between sexes.
Swedish authorities finally closed a 34-year-old inquiry into the murder of their prime minister.
Swedish company Saab, previously known for making aircraft, produced their first automobile.
