In this video, The History Guy looks at our 5,000-year-plus love affair with chocolate. Some really interesting things that I was not aware of. Like the fact that for most of chocolate's history, it has been a bitter, often fermented drink. The Spanish word, chocolate, is a translation of an Aztec word which may have meant "bitter drink."
The sweet and milk chocolate candies that we know today are a surprisingly modern invention, coming into their own in the late 19th and early 20th centuries as industrial machinery allowed for the refining, mixing, and processing of chocolate with other ingredients.