Jacob Abbott (1803-1879)
Born in Maine, in the United States, Jacob Abbott was a tutor and professor of philosophy and mathematics at Amherst College, as well as a prolific writer across genres. Over his long-spanning career, he wrote 180 books, which include books on children's fiction, biographies, religion, and American history. He also wrote 22 biographies of important figures in world history, including those of Alexander the Great, Cleopatra, Mary Queen of Scots, Genghis Khan, Xerxes, Julius Caesar, and Hannibal. Although these were all well received by readers across the world, his most famous works are his 14 Rollo series that follow the adventures and experiences of a boy called Rollo.