Event:
U.S.S.R. performs nuclear test at Semipalitinsk, Eastern Kazakhstan U.S.S.R.
More Notable Events on March 15:
1989 Department of Veterans Affairs officially established as a Cabinet position
1969 U.S. Supreme Court Justice Abe Fortas resigns
1960 Key Largo Coral Reef Preserve established, 1st underwater park
1930 1st streamlined submarine of U.S. navy, USS Nautilus, launched
1912 Pitcher Cy Young retires from baseball with 511 wins
