Indiana became the 19th state to join the United States of America.
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Tiger Woods announced his indefinite leave from professional golf to focus on his marriage.
American science fiction movie 'Star Trek: Insurrection' was released in the US.
A trial for Huntington's disease procured positive results.
The final Apollo mission, Apollo 17, successfully landed on the moon.
Climate activist Greta Thunberg was named Time magazine's Person of the Year.