The word chocolate originated in the Native American Nahuatl language indigenous to central Mexico.
The chocolate residue found in a Mayan teapot suggests that Mayans were drinking chocolate 2,600 years ago, making the Mayans hold the earliest record of cacao use. The Aztecs associated chocolate with Xochiquetzal, the goddess of fertility. In the New World, chocolate was consumed in a drink called xocoatl, often seasoned with vanilla, chilli pepper, achiote (which we know today as annatto) and pimento. Xocoatl was believed to fight fatigue, a belief that is probably attributable to the theobromine content. Chocolate was an important luxury good throughout Pre-Columbian Mesoamerica, and cocoa beans were often used as currency. Other chocolate drinks combined it with such edibles as maize gruel and honey.
The xocoatl was said to be an acquired taste. Jose de Acosta, a Spanish Jesuit missionary who lived in Peru and then Mexico in the later 16th century, wrote:
Loathsome to such as are not acquainted with it, having a scum or froth that is very unpleasant to taste. Yet it is a drink very much esteemed among the Indians, where with they feast noble men who pass through their country. The Spaniards, both men and women, that are accustomed to the country, are very greedy of this Chocolaté. They say they make diverse sorts of it, some hot, some cold, and some temperate, and put therein much of that "chili"; yea, they make paste thereof, the which they say is good for the stomach and against the catarrh.
Christopher Columbus brought some cocoa beans to show Ferdinand and Isabella of Spain, but it remained for Hernando de Soto to introduce it to Europe more broadly.
The first recorded shipment of chocolate to the Old World for commercial purposes was in a shipment from Veracruz to Seville in 1585. It was still served as a beverage, but the Europeans added sugar to counteract the natural bitterness, and removed the chili pepper. By the 17th century it was a luxury item among the European nobility.
At the end of the 18th century the first solid chocolate we eat today was created in Turin. This chocolate was sold in big quantities from 1826 by Pierre Paul Caffarel. In 1828, Dutchman Conrad J. van Houten patented a method for extracting the fat from cocoa beans and making powdered cocoa and cocoa butter. Van Houten also developed the so-called Dutch process of treating chocolate with alkali to remove the bitter taste. This made it possible to form the modern chocolate bar. It is believed that the Englishman, Joseph Fry made the first chocolate for eating in 1847, followed shortly after by the Cadbury brothers.
Daniel Peter, a Swiss candle-maker, joined his father-in-law's chocolate business. In 1867 he began experimenting with milk as an ingredient. He brought his new product, milk chocolate, to market in 1875. He was assisted in removing the water content from the milk to prevent mildewing by a neighbor, a baby food manufacturer named Henri Nestlé. Rudolph Lindt invented the process called conching, which involves heating and grinding the chocolate solids to a very fine grain ensuring the liquid is evenly blended.