The iconic historical Winchester Cathedral in Hampshire, England, was dedicated to Bishop Walkelin.
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Researchers discovered that as many as 600 million birds die in the US every year after flying into skyscrapers.
The Iron Lady Margaret Thatcher died at 87 years old.
Democratic Senator Bernie Sanders dropped out of the race for US president.
Clint Eastwood was elected as Mayor of Carmel, California.
German mathematician Carl Friedrich Gauss became the first person to prove quadratic reciprocity law.