1875
Swiss chocolatier Daniel Peter invents milk chocolate

In the mid-1870s, Daniel Peter, a Swiss chocolatier who worked with Henri Nestle, invented milk chocolate by mixing dried milk powder with chocolate.

Source: Goldstein, D., & Mintz, S. (2015). The Oxford Companion to Sugar and Sweets. Oxford University Press

Drugs: Cacao (cocoa, chocolate)
Regions: Switzerland