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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A US National Reconnaissance Office mission launched on a reused SpaceX booster for the first time.
FedEx officially began its operations and flew 186 packages to 25 cities on the US's East Coast.
Using gene therapy, eight babies suffering from ''bubble boy disease" were cured in Memphis, Tennessee.
The United Kingdom officially created its first National Park, the Peak District National Park.
American boarding house owner Mary Surratt was arrested for taking part in President Lincoln's assassination.