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 marked by both perseverance and profound artistic evolution, ultimately establishing her as one of the most signific…