The movie “Thor” premiered in cinemas in Sydney, Australia.
It was released in the United States on May 6 and earned $449.3 million worldwide.
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Using gene therapy, eight babies suffering from ''bubble boy disease" were cured in Memphis, Tennessee.
Explorer Christopher Columbus was given funding for his first journey.
A US National Reconnaissance Office mission launched on a reused SpaceX booster for the first time.
Slavery in Ethiopia came to an end thanks to Emperor Haile Selassie.
Game of Thrones premiered on HBO.
