Theodor Geisel By lksiqueiros@gmail.com Jan 28, 1925 Got his pen name "Seuss" Jan 28, 1926 Theodor adds a "Dr." to his pen name Jan 28, 1937 Dr. Seuss published his first book And to Think I Saw it on Mulberry Street Jan 28, 1957 Dr. Seuss published Cat in the Hat & How the Grinch Stole Christmas Jan 28, 1958 Dr. Seuss became president of begginer books Jan 28, 1984 The Pulitzer Prize Committee presented him with an award for a Lifetime of Contribution to Children’s Literature Sep 24, 1991 Dr. Seuss death Dies a 87 years old