North Dakota and South Dakota became the 39th & 40th states to join the United States of America.
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The Hunger Games: Mockingjay – Part 2 with Jennifer Lawrence premiered in Berlin, Germany.
A family coup in Saudi Arabia replaced King Saud with Faisal, his half-brother.
Martin Luther King Jr. Day was officially made a federal US holiday.
The first crew arrived at the International Space Station onboard a Soyuz spacecraft.
The Morris Worm, the first computer virus made to be caught over the internet, disabled 6,000 computers in 24 hours.