Chocolate is the name of the food made by mixing various things.
The most common ingredient is cacao.
Cacao beans were originally used for drinks and medicinal purposes by native Mexicans.
If you look at the history of chocolate,
In the ancient Mayan period (100–600), we drank it as a sweet but bubbly flavored cacao drink.
Through Spain, which conquered the Maya, it became known in Europe in the 16th century by adding cinnamon and sugar to cacao drinks.
And as we enter into the 19th century, we're going to make chewing milk chocolate, which we see a lot in Europe today.