Passage: In 1850, Congress passed the Fugitive Slave Law, prohibiting assistance to fugitives and strengthening sanctions even in free states. At the time, Stowe had moved with her family to Brunswick, Maine, where her husband was now teaching at Bowdoin College. Their home near the campus is protected as a National Historic Landmark.Stowe claimed to have a vision of a dying slave during a communion service at Brunswick's First Parish Church, which inspired her to write his story. However, what more likely allowed her to empathize with slaves was the loss of her eighteen-month-old son, Samuel Charles Stowe. She even stated the following, "Having experienced losing someone so close to me, I can sympathize with all the poor, powerless slaves at the unjust auctions. You will always be in my heart Samuel Charles Stowe." On March 9, 1850, Stowe wrote to Gamaliel Bailey, editor of the weekly anti-slavery journal The National Era, that she planned to write a story about the problem of slavery: "I feel now that the time is come when even a woman or a child who can speak a word for freedom and humanity is bound to speak... I hope every woman who can write will not be silent."Shortly after in June, 1851, when she was 40, the first installment of her Uncle Tom's Cabin was published in serial form in the newspaper The National Era. She originally used the subtitle "The Man That Was A Thing", but it was soon changed to "Life Among the Lowly". Installments were published weekly from June 5, 1851, to April 1, 1852. For the newspaper serialization of her novel, Stowe was paid $400. Uncle Tom's Cabin was published in book form on March 20, 1852, by John P. Jewett with an initial print run of 5,000 copies. Each of its two volumes included three illustrations and a title-page designed by Hammatt Billings. In less than a year, the book sold an unprecedented 300,000 copies. By December, as sales began to wane, Jewett issued an inexpensive edition at 37½ cents each to stimulate sales.

Question: How many copies did the book sell in less than a year?
300,000