Mary Stevenson Cassatt: A Pioneer of American Impressionism Mary Stevenson Cassatt, born in Allegheny City (now part of Pittsburgh), Pennsylvania, on May 21, 1844, stands as a pivotal figure in the transition of American art from academic tradition to the vibrant innovations of the late 19th century. Her journey was one of persistent dedication and intellectual curiosity, shaped by a unique upbringing that blended European artistic in…