Event:
1st U.S. sewage disposal system separate from storm drains, Memphis
More Notable Events on January 21:
1989 Wayne Gretzky passes Marcel Dionne to become NHL's 2nd all time scorer
1987 BB King donates his 7,000 record collection to the University of Mississippi
1977 President Jimmy Carter pardons almost all Vietnam War draft evaders
1976 Supersonic Concorde, 1st commercial flights, by Britain and France
1970 World's largest airplane, Boeing 747, makes 1st commercial flight
