Finland officially joined NATO, becoming the 31st member of the security alliance.
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Beyoncé and Jay-Z married with only 40 guests present on their special day.
NASA's Challenger Space Shuttle was launched from Florida on its maiden voyage.
The Kangra earthquake in India killed over 20,000 people.
The Pink Star Diamond sold for a record USD 71 million in Hong Kong.
US Congress released a US flag that featured 20 stars and 13 red and white stripes.
