Roy Lichtenstein attended classes at the Parsons School of Design and Art Students League before enrolling in the Fine Arts program at Ohio State in 1940. He was drafted into the United States Army, but was discharged and returned to Ohio in 1946 to finish his master's degree. In 1957 he accepted a teaching position at the State University of New York in Oswego, all the while pursuing his art career and gradually shifting his focus towards Expressionism. He began teaching at Rutgers University in 1960, and by 1961, he had created his first paintings of cartoon and comic strip icons with his trademark use of Benday dots. By 1964, Lichtenstein was one of Pop art's most recognized, yet controversial, artists.