Queen Elizabeth II had hip surgery at King Edward VII Hospital.
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Nineteen countries vowed to gradually phase out coal at the United Nations Summit in Bonn, Germany.
Call of Duty: Black Ops 2 earned a staggering $500 million within 24 hours of release.
The first edition of America's oldest newspaper, The New York Evening Post, was published.
American singer Mario released his hit single 'Let Me Love You.'
Oklahoma became the 46th state to join the United States of America.
