State troopers in Victoria, Australia, killed more than 30 gold miners at the Battle of the Eureka Stockade.
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The original PlayStation was launched in Japan.
The first pizza party was held in space.
Neon lighting was first demonstrated at the Paris Motor Show by Georges Claude.
Agatha Christie mysteriously disappeared for 11 days.
The 7-year old Ryan of 'Ryan Toysreview' was announced as the year's highest-paid YouTube star earning $22 million.
