births
Mary Jackson, African-American mathematician and aerospace engineer (died 2005)
Related Wikipedia articles
Mary Jackson (engineer)
American aerospace engineer (1921–2005)
Mary Jackson was an American mathematician and aerospace engineer at the National Advisory Committee for Aeronautics (NACA), which in 1958 was succeeded by the National Aeronautics and Space Administration (NASA). She worked at Langley Research Center in Hampton, Virginia, for…Source: Wikipedia (CC BY-SA)
April 9
Day of the year
April 9 is the 99th day of the year in the Gregorian calendar; 266 days remain until the end of the year.Source: Wikipedia (CC BY-SA)