Neon lighting was first demonstrated at the Paris Motor Show by Georges Claude.
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The 70th anniversary of NATO was marked by a gathering in London of world leaders, followed by a reception by Elizabeth II at Buckingham Palace.
The first pizza party was held in space.
Soviet President Mikhail Gorbachev and US President George H. W. Bush declared an end to the Cold War.
The original PlayStation was launched in Japan.
NASA lost radio contact with the Mars Polar Lander moments before the spacecraft entered the Martian atmosphere.
