Google announced that it had acquired YouTube for $1.65 billion.
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Hoover Dam began producing electricity and transmitting it to Los Angeles, California.
14-year-old girls-rights activist Malala Yousafzai was shot three times on her way to school.
The Dublin and Kingstown Railway officially opened.
Peter the Great of Russia defeated Sweden at the battle of Lesnaya.
German Chancellor Angela Merkel visited Athens and was met by 50,000 protestors.
