1866

Three days of race-related rioting erupted in Memphis, Tennessee, as white mobs targeted Black people, 46 of whom were killed, along with two whites.

1931

The Empire State Building was dedicated in New York City; it would be the world’s tallest building for four decades.

1963

Jim Whittaker, joined by Sherpa mountaineer Nawang Gombu, became the first American to summit Mount Everest.

2011

President Barack Obama announced the death of Osama bin Laden during a U.S. commando operation, which took place in Abbottabad, Pakistan, in the early morning hours of May 2 local time.

– From wire reports