Joseph Smith and five others organized the Church of Jesus Christ of Latter-day Saints in Fayette, New York.
The Battle of Shiloh in the American Civil War began.
First modern Olympic Games opened in Athens, Greece.
Robert Peary and Matthew Henson became the first to reach the North Pole.
U.S. declared war on Germany and entered World War I.
The presidents of Rwanda and Burundi were killed in a plane crash.