California became the 31st state to join the United States of America.
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Queen Elizabeth II became Great Britain's longest-reigning monarch in history.
Grace Hopper fell victim to the first-ever computer bug after removing a moth from her Harvard Mark II computer.
President Lyndon B signed the National Traffic and Motor Safety Act, which set new standards for vehicles and drivers.
Congress changed the official name from United Colonies to the United States of America.
The New England Confederation declared war on the Wampanoag Indians.