Last day in Test Cricket for Viv Richards, Dujon and Marshall More Notable Events on August 12: 1994 Stephen G. Breyer, sworn in as Supreme Court Justice
1981 IBM introduces PC and PC-DOS version 1.0
1977 Space shuttle Enterprise makes 1st atmospheric flight
1953 Soviet Union conducts secret test of its 1st hydrogen bomb
1898 Hawaii formally annexed to U.S.