In 1933, Nellie T. Ross became the first female director of the U.S. Mint. (Handout photo)
1765: The first school of medicine in the American colonies, the Medical School of the College of Philadelphia (now the Perelman School of Medicine at the University of Pennsylvania), was founded.
1791: The Commonwealth of Poland-Lithuania adopted a constitution.
1802: Washington, D.C. was incorporated as a city.