Dr. Seuss is the pen name of Theodore Seuss Geisel. He was born on March 2, 1904, in Springfield, Massachusetts, USA. His father was a zookeeper.

Geisel went to Dartmouth College in New Hampshire. After graduating in 1925, he went to Oxford University, in England, where he met his wife, Helen Palmer (they were married in 1927).

Back in the USA, Geisel published cartoons for a humor magazine and got a job creating ads for an insecticide company. His ads for a product called "Flit" soon became famous. In 1936, he wrote his first book, "To Think That I Saw It on Mulberry Street." It was rejected by dozens of publishers, but was finally published in 1937.

During World War 2, Geisel wrote documentaries for the Army. In 1951, after the war, his writing for the short cartoon movie, "Gerald McBoing-Boing," won an Oscar.

In 1955, Seuss wrote "The Cat in the Hat," using only 220 different words. He wrote the book after reading a magazine article that stated that children's books were boring. His book was a tremendous success.

In 1960, a friend of Dr. Seuss' bet him that he couldn't write a book using only 50 different words. He did, writing "Green Eggs and Ham." It was his most popular book.

Dr. Seuss wrote about 50 children's books. His last one, published in 1990, was "Oh, the Places You'll Go!" He died on September 24, 1991.

Text taken from www.enchantedlearning.com/bios/seuss/cloze