State troopers in Victoria, Australia, killed more than 30 gold miners at the Battle of the Eureka Stockade.
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NASA lost radio contact with the Mars Polar Lander moments before the spacecraft entered the Martian atmosphere.
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.
Illinois became the 21st state to join the United States of America.
The 7-year old Ryan of 'Ryan Toysreview' was announced as the year's highest-paid YouTube star earning $22 million.
The original PlayStation was launched in Japan.
