‘One Fish Two Fish Red Fish Blue Fish’ by Dr. Seuss was published in 1960
description: ‘One Fish Two Fish Red Fish Blue Fish’ by Dr. Seuss was published in 1960 in the United States by Random House. Since then it has been placed at number 13 on the list of All-Time Bestselling Children’s Books by Publisher’s Weekly. At the beginning of the century, it had sold over six million copies. It has also been named one of the best books for teachers in the classroom.
source: https://poemanalysis.com/dr-seuss/one-fish-two-fish-red-fish-blue-fish