Science Innovation
3 facts
August 12, 1992
Mae Jemison Enters Space
Mae Jemison became the first African American woman to travel in space.
July 23, 1867
Madame C.J. Walker Born
Entrepreneur and philanthropist Madame C.J. Walker, America's first female self-made millionaire, was born.
July 20, 1923
Garrett Morgan Patents Traffic Signal
Inventor Garrett Morgan received a patent for the three-position traffic signal.