Dr. Seuss's first book was And to Think That I Saw it On Mulberry Street. According to an internet search, Seuss completed the manuscript in 1936 and submitted it to over 20 publishers during the winter of 1936-37 before it was finally accepted and published on December 21, 1937.
Dr. Seuss was born March 4, 1904. So you could say he was 32 years old when he wrote his first book and was 33 years 9 months and 19 days old when it was published.
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he was 56 wrote his first book
Dr. Seuss was 52 years old when he wrote The Cat in the Hat in 1956. The Cat in the Hat was published in 1957.
Charles wrote his last book at the age of 58 years old and wrote his first book at the age of 24 years old.
Mary Shelley was 20 years old when she wrote her first book, "Frankenstein".
Dr. Seuss was 56 when he wrote Green Eggs and Ham. It published in 1960.
Isaac Asimov was 21 years old when he wrote his first book, "Marooned off Vesta."
enid blyton was 14 when she wrote her first book "childrens whisper"
John Boyne was 29 years old when he wrote his first book, "The Thief of Time," which was published in 2000.
Looking at some of his websites and info it s unknown when he wrote his first book he wrote story's at the age of 12 and at 19 wrote a book (around 19).
She was 9
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