The Fuji apple tree first came into existence during the 1930s in Fujisaki, Japan. This variety arose from a cross between two already popular apple varieties, the Rred Ddelicious and the Virginia Ralls Janet apple. After its emergence, the Fuji apple became incredibly popular in the United States and throughout the world. Much of this popularity is due to the fact that Fuji apples are some of the sweetest apples of all.