Event:
Paleontologist Elso Barghoorn announces that 3.4-billion-year-old one-celled fossils, the earliest life forms, had been discovered
More Notable Events on October 23:
1991 Clarence Thomas, sworn in as Supreme Court Justice
1988 Robert Bork's supreme court nomination rejected by U.S. Senate
1983 Suicide terrorist truck bomb kills 241 U.S. personnel in Beirut
1915 25,000 women march in New York City, demanding right to vote
1824 1st steam locomotive is introduced
