Events
1652 - Rhode Island passes the first law in North America making slavery illegal.
1910 - The Earth passes through the tail of Comet Halley.
1969 - Apollo program: Apollo 10 launches.
Births
1048 - Omar Khayyám, Persian poet (d. 1123)
1872 - Lord Bertrand Russell, English mathematician and philosopher, recipient of the Nobel Prize in Literature (d. 1970)
1920 - Pope John Paul II (d. 2005)
Deaths
1911 - Gustav Mahler, Austrian composer (b. 1860)
1980 - Ian Curtis, British musician, singer and lyricist (Joy Division) (b. 1956)
1995 - Elizabeth Montgomery, American actress (b. 1933)