Around 1940, my grandparents owned a small farm, close to Roselle, Illinois. We had a willow tree close to a little creek. I saw my grandpa take a few leaves off the tree and chew on them. I asked him what he was doing. He said he was taking his medicine; it eased his pain. Many years later, I found out that the Willow Tree contains some of the same ingredients that are in aspirin. They stop the pain.