Event:
60th U.S. Golf Open: Arnold Palmer shoots 280 at Cherry Hills in Denver
More Notable Events on June 18:
1986 52 die in plane and helicopter collision over Grand Canyon
1979 President Carter and Leonid I Brezhnev sign SALT 2 treaty
1948 American Library Association adopts Library Bill of Rights
1934 U.S. Highway planning surveys nationwide authorized
1873 Susan B. Anthony fined $100 for attempting to vote for President
