The Avengers premiered in Los Angeles, California, US.
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Coup d'état attempt on President Hugo Chávez failed in Venezuela.
President Ronald Reagan returned home from the hospital after narrowly escaping death after someone shot him on March 30.
The Civil Rights Act was enacted in the US after being signed by President Lyndon B.
Paleontologists unearthed dinosaur eggs with embryonic bones inside in China.
The War of the Roses ended with King Henry VI surrendering to King Edward IV in London.
