Joseph Haydn (March 31, 1732 – May 31, 1809)
1889 - The Eiffel Tower is inaugurated.
1918 - Daylight saving time goes into effect in the United States for the first time.
1930 - The Motion Pictures Production Code is instituted, imposing strict guidelines on the treatment of sex, crime, religion and violence in film for the next thirty eight years.
1998 - Netscape releases the code base of its browser under an open-source license agreement; the project is given the code name Mozilla and would eventually be spun off into the non-profit Mozilla Foundation.