1790 - John Barry copyrighted "Philadelphia Spelling Book." It was the first American book to be copyrighted.
1860 - The book, "Malaeska, the Indian Wife of the White Hunter" by Mrs. Ann Stevens, was offered for sale for a dime. It was the first published "dime novel."
1931 - Robert H. Goddard patented a rocket-fueled aircraft design.
1934 - Donald Duck made his debut in the Silly Symphonies cartoon "The Wise Little Hen."
1940 - Norway surrendered to the Nazis during World War II.
1943 - The withholding tax on payrolls was authorized by the U.S. Congress.
1946 - Mel Ott (with the New York Giants) became the first manager to be ejected from a doubleheader (both games).
1978 - Leaders of the Church of Jesus Christ of Latter-day Saints struck down a 148-year-old policy of excluding black men from the Mormon priesthood.
1985 - The Los Angeles Lakers won the NBA title by defeating the Boston Celtics.
1986 - The Rogers Commission released a report on the Challenger disaster. The report explained that the spacecraft blew up as a result of a failure in a solid rocket booster joint.
1999 - NATO and Yugoslavia signed a peace agreement over Kosovo.
2000 - Canada and the United States signed a border security agreement. The agreement called for the establishment of a border-enforcement team.
2001 - Patrick Roy (Colorado Avalanche) became the first National Hockey League (NHL) player to win three Conn Smythe Trophies. The award is given to the playoff's Most Valuable Player.