How thousands of volunteers cleaned up after a huge environmental disaster in 2002
How El Salvador's leftist rebels led a top army officer into a deadly trap
The conviction of diplomat Alger Hiss was one of America's most notorious spy cases
East Germany's most famous singer-songwriter was exiled to the West in November 1976.
It was a box-office hit and a revolution in the world of animated films.
The president of South Vietnam was overthrown and murdered in a coup in November 1963.
Charles Manson's followers murdered 9 people on his orders. But how to prove his guilt?
In 1979 Islamic militants took over the Grand Mosque in Mecca, the holiest site in Islam
Huge diamond deposits were first discovered in the Kalahari desert in Botswana in 1967
Searching for the thousands who went missing during Lebanon's brutal civil war.