In 1847, British chocolate company J.S. Fry & Sons created the first solid edible chocolate bar from cocoa butter, cocoa powder and sugar. Rodolphe Lindt’s 1879 invention of the conching machine, which produced chocolate with a velvety texture and superior taste, and other advances allowed for the mass production of smooth, creamy milk chocolate on factory assembly lines. You don’t need to have a sweet tooth to recognize the familiar names of the family-owned companies such as Cadbury, Mars and Hershey that ushered in a chocolate boom in the late 1800s and early 1900s that has yet to abate. Today, the average American consumes 12 lbs. of chocolate each year, and more than $75 billion worldwide is spent on chocolate annually.