1824: John Cadbury, an English Quaker, begins roasting and grinding chocolate beans to sell in his tea and coffee shop.
In 1842 Cadbury's Chocolate Company in England creates the first chocolate bar.
1875: A Swiss chocolate maker, Daniel Peter, mixes Henri Nestle's condensed milk with chocolate and the two men found a company to manufacture the first milk chocolate.
1894: Milton Hershey adds a line of chocolate to his caramel manufacturing business. Soon he invents the Hershey Bar by experimenting with milk chocolate. Hershey's Cocoa appears next.
1896: Leonard Hershfield invents the Tootsie Roll, named after his daughter.
1897: Brownies are first mentioned in print, listed for sale in the Sears, Roebuck and Co. catalogue.
About 1900: A machine called the enrober is invented to replace the task of hand-dipping chocolate.
1930: Franklin Mars invents the Snickers Bar.
1939: Nestle introduces semisweet chocolate morsels.
1940: The Mars company invents M&M's for soldiers going to World War II.