On Feb. 28, 1951, the Senate committee headed by Estes Kefauver (D-Tenn.) reported that at least two major crime syndicates were in the U.S.
In 1953 scientists James Watson and Francis Crick discovered the double-helix structure of DNA, the molecule that contains human genes.
In 1983 the final episode of “M*A*S*H” aired on CBS.
In 1986 Swedish Prime Minister Olof Palme was shot to death in Stockholm.
In 1989 Richard M. Daley defeated acting Mayor Eugene Sawyer in a Democratic primary election.
In 1991 allied and Iraqi forces suspended combat.
In 1993 a gun battle erupted near Waco, Texas, when ATF agents tried to serve warrants on the Branch Davidians; four agents and six Davidians were killed as a 51-day standoff began.
In 2005 U.S. District Judge Joan Humphrey Lefkow discovered her husband and mother slain in her Chicago home — victims of an enranged litigant.
