In American inventor Margaret Knight patented a machine for making flat-bottomed paper bags -- the same kind we use today. She started her inventing career at age when she designed a device to help prevent injuries in textile mills.
Florence Barbara Seibert was born in Easton, Pennsylvania on October 1897 (d. August She was an American biochemist known for isolating a pure form of tuberculin used in the standard TB test. She is a member of the U. National Womens Hall of Fame.
Dorothea Dix apr 1802-July 1887 At age 15 stated school for girls. Then only boys could go to public school. Later was shocked at conditions for the mentally impaired. Became a fighter for better understanding, treatment and conditions for them. She was describes as "the most effective advocate of humanitarian reform in American mental institutions during the nineteenth century" (Goldenson, 1970)