Mercury-Atlas 2 reentry Test reaches 172 km More Notable Events on February 21: 1992 Kristi Yamaguchi of U.S. wins Olympic gold medal in women's figure skating
1972 Richard Nixon becomes 1st U.S. president to visit China
1970 Jackson 5 make TV debut on American Bandstand
1953 Francis Crick and James Watson discover structure of DNA-molecule
1885 Washington Monument dedicated in Washington D.C.