Event:
U.S.S.R. performs nuclear test at Semipalitinsk, Eastern Kazakhstan U.S.S.R.
More Notable Events on October 15:
1997 U.S. launches nuclear powered Cassini to Saturn
1991 Clarence Thomas is confirmed as Supreme Court Justice
1985 Shuttle Columbia carries Spacelab into orbit
1956 William J Brennan, Jr. appointed to Supreme Court
1878 Edison Electric Light Company incorporated
