Alexander Calder was born on July or August 22, 1898, in Lawnton, Pennsylvania, into a family of artists. In 1919, he received an engineering degree from Stevens Institute of Technology, Hoboken, New Jersey. Calder attended the Art Students League, New York, from 1923 to 1925, studying briefly with Boardman Robinson and John Sloan. As a freelance artist for the National Police Gazette in 1925, he spent two weeks sketching at the circus; his fascination with the subject dates from this time.