There are different types of chocolate such as black, brown, and white that are commonly found in chocolate bars and ice cream. Chocolate has been consumed for over 2000 years and was originally produced just for eating. In 1847, Fry & Sons developed the first solid chocolate bar for snacking, making chocolate bars popular for happiness and socializing in the 18th century at "chocolate houses." Cocoa was also very important in Aztec culture, and chocolate can be made into drinks as well as gifts for Valentine's Day.