History of Chocolate By vewade 250 Cacao discovered by Mayans Jan 1, 1400 Aztecs used cacao as currency Jan 1, 1657 First Chocolate house opened in London Jan 1, 1826 Solid Chocolate sold in large quantities for the first time Jan 1, 1867 Milk Chocolate invented Jan 1, 1894 Hershey Chocolate Company Started Jan 1, 1907 Hershey Kisses Introduced Jan 1, 1923 Hershey Company aquired Reese's Jan 1, 1966 Godica brand Chocolate introduced to U.S. Jan 1, 1998 Lindt and Sprungli Chocolate aquires Ghirardelli Chocolate Company