TIL that the ancient Greeks used butter as a medicine and thought only barbarians ate it. In the Middle Ages, it was sometimes used as lamp oil but was mainly eaten by peasants. It only became popular among the wealthy when the church allowed its consumption during Lent.

https://en.wikipedia.org/wiki/Butter
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1gwfncm/til_that_the_ancient_greeks_used_butter_as_a/