Google announced that it had acquired YouTube for $1.65 billion.
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The South Korean alphabet, called 'Hangul,' was published.
One thousand radio stations from over 100 countries around the world simultaneously broadcast John Lennon's 'Imagine' in honor of what would have been his 50th birthday.
A fragment of a meteorite landed in Peekskill, New York, US, and smashed a 1980 Chevrolet Malibu.
14-year-old girls-rights activist Malala Yousafzai was shot three times on her way to school.
Peter the Great of Russia defeated Sweden at the battle of Lesnaya.
