Event:
A substantially large oil field that is estimated to contain between 8 and 15 billion barrels, is discovered off the coast of Brazil
More Notable Events on October 31:
1992 Don Keller makes his 18,000th sky dive
1963 J. Edgar Hoover last meeting with president John F. Kennedy
1952 1st thermonuclear bomb detonated - Marshall Islands
1941 Mount Rushmore is completed
1918 Spanish flu-virus kills 21,000 in U.S. in 1 week