Moxie

Moxie is a brand of carbonated beverage that is among the first mass-produced soft drinks in the United States. It was created around 1876 by Augustin Thompson as a patent medicine called "Moxie Nerve Food" and was produced in Lowell, Massachusetts. It has been described as having "a bitter aftertaste that some say is similar to root beer." It is flavored with gentian root extract, an extremely bitter substance commonly used in herbal medicine.