Shōgun is a 1975 novel by James Clavell. It is the first novel (by internal chronology) of the author's Asian Saga. A major best-seller, by 1990 the book had sold 15 million copies worldwide. Beginning in feudal Japan some months before the critical Battle of Sekigahara in 1600, Shōgun gives an account of the rise of the daimyō "Toranaga" (based upon the actual Tokugawa Ieyasu). Toranaga's rise to the shogunate is seen through the eyes of the English sailor John Blackthorne, called Anjin ("Pilot") by the Japanese, whose fictional heroics are loosely based on the historical exploits of William Adams.