Dr. Seuss was born Theodor Geisel in Springfield, Massachusetts on March 2, 1904. After attending Dartmouth College and Oxford University, he began a career in advertising. His advertising cartoons, featuring Quick, Henry, the Flit!, appeared in several leading American magazines. Dr. Seusss first childrens book, And To Think That I Saw It On Mulberry Street, hit the market in 1937, and the world of childrens literature was changed forever!