Obama surprised Biden with the Presidential Medal of Freedom during a White House ceremony.
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College students illegally produced America's first X-ray photo.
Malcolm X's daughter, Qubilah Shabazz, was arrested for making arrangements to kill Louis Farrakhan, who she believed killed her father in 1965.
NASA's Deep Impact space probe launched from the Cape Canaveral Air Force Station in Florida.
The Charleston Museum was founded, making it the first public museum in the United States.
Five boys rediscovered the Caves of Nerja in Andalucia, Spain.
