After 20 years of work, the Leaning Tower of Pisa had its lean corrected by 17.7 inches (45 cm).
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American country singer Toby Keith released his single 'How Do You Like Me Now?!'
A 100-vehicle pile-up on a highway in Texas killed two people and injured 120 more.
YouTube Live had the largest viewed broadcast ever, with guest artists performing from San Francisco and Tokyo.
Angela Merkel became the first female Chancellor of Germany.
A baby girl named Vanellope Wilkins had her heart successfully put back inside her body.
