A stampede during a religious event in Uttar Pradesh, India, leaves at least 121 people dead and 150 others injured.
Vicente Fox Quesada is elected the first President of México from an opposition party, the Partido Acción Nacional, after more than 70 years of continuous rule by the Partido Revolucionario Institucional, in the 2000 Mexican general election.
France conducts its first nuclear weapon test in the Pacific, on Moruroa Atoll.
Civil rights movement: U.S. President Lyndon B. Johnson signs the Civil Rights Act of 1964 meant to prohibit segregation in public places.
Amelia Earhart and navigator Fred Noonan are last heard from over the Pacific Ocean and disappear while attempting to make the first equatorial round-the-world flight.
World War I: U.S. President Warren G. Harding signs the Knox–Porter Resolution formally ending the war between the United States and Germany.
Charles J. Guiteau shoots and fatally wounds U.S. President James A. Garfield (who will die of complications from his wounds on September 19).
American Civil War: On the second day of the Battle of Gettysburg - the Battle of Little Round Top takes place and results in an Union victory after the Confederate troops unsuccessfully try to assault the Union left flank.
Bahia Independence Day: The Siege of Salvador ends Portuguese rule in Brazil, with the final defeat of the Portuguese crown loyalists in the province of Bahia.
American Revolution: The Continental Congress adopts the Lee Resolution severing ties with the Kingdom of Great Britain, although the wording of the formal Declaration of Independence is not adopted until July 4.
Age of Discovery: The Treaty of Tordesillas is ratified by Spain.