By the 17th century, rich people in Europe were drinking it.
Later, people started using chocolate in pastries, like pies and cakes.
In 1828, Dutch chocolate makers started using a new process for removing the fat from cacao beans, and getting to the center of the cacao bean.
The Dutch chocolate maker Conrad J. van Houten made a machine that pressed the fat from the bean.
The resulting powder mixed better with water than cacao did.