On Thursday, many people were remembering the American writer Theodore Seuss Geisel better known as “Dr. Seuss.” Geisel is one of the world’s most famous authors of books for children. March 2 would have been his 113th birthday. He was born in 1904 in Springfield, Massachusetts. He died in 1991. In his honor, March 2 is known as both “Dr. Seuss Day” and, in many places, “World Book Day.” The aim of the observance is to celebrate literature and urge children around the world to read. On Thursday, the hashtags #DrSeuss and #WorldBookDay were two of the top trending topics on Twitter. Dr. Seuss is known for his fantastical and humorous books for young children. His books are filled with colorful pictures and fun rhymes. Dr. Seuss' works include “The Cat in the Hat, ”Green Eggs and Ham” and “The Lorax.” Dr. Seuss helped generations of children learn to read - and to love reading. His books have been published in some 20 languages. Many people used “World Book Day” to express thanks for Dr. Seuss’ books.