Today in History May 1 (Happy Labour day) 1. 1900 The Scofield Mine disaster kills over 200 men in Scofield, Utah, which up to date, is the fifth worst mining accident in United States History. 2. 1931 The Empire State Building in New York officially opens. 3. 1956 The polio vaccine developed by Jonas Salk is made available to the public. 4. 1961 Prime Minister Fidel Castro proclaims Cuba a socialist nation and bans elections. 5. 1963 James Whittaker becomes the first American to top Mt. Everest. 6. 1977 Thirty-six people are killed in Taksim Square, Istanbul, during the Labour Day celebrities. 7. 1989 Disney-MGM-Studios opens a Walt Disney World near Orlando, Florida, United States. 8. 1997 After nearly 20 years of Conservative government, British voters give the Labour Party, led by Tony Blair, a landslide victory in British Parliament elections. 9. 1999 SpongeBob SquarePants premieres on Nickelodeon after the 1999 Kids' Choice Awards. 10. 2...