1. Dr. William Hinton is known worldwide for his two tests that detect
syphilis; he's also noted for being the first African American professor
at Harvard University.
1. This father Ken Griffey Sr. and son Ken Griffey Jr. are the only father
and son in professional baseball history to play on the same team at the
1. Dr. Martin Luther King, Jr.'s birthday is celebrated on third Monday
1. In 1989 Colin L. Powell became the first African American Chairman
of the Joint Chief of Staff.