Dr. Seuss created the word "nerd" in his 1950 book, If I Ran the Zoo. The adjective "nerdy" popped up in the late 70s.
Dr. Seuss also created the word "grinch" in 1958. Converse has a line of Chuck Taylor shoes based on characters from Dr. Seuss books. I bought my daughter the Green Eggs & Ham high tops for Christmas and she squealed like a toddler.
Seuss has stated that the titular character Yertle represented Adolf Hitler, with Yertle's despotic rule of the pond and takeover of the surrounding area parallel to Hitler's regime in Germany and invasion of various parts of Europe."
Dr. Seuss' real name was Theodor Seuss Geisel