The Peloponnesian war came to an end when Admiral Lysander and his Spartan armies defeated their Athenian foes.
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President Harry Truman opened the two-lane White House bowling alley.
Francis Crick & James Watson's discovery of the double-helix structure of DNA was formally announced.
Porsche was officially added to the commercial register in Germany.
Bell Labs demonstrated the first practical silicon solar cell in New Jersey, US.
Germany banned the denial of Nazi genocide against Jewish people during the Holocaust.
