Cider is a fermented, alcoholic beverage made from apples. Humans have been fermenting apples to make cider for thousands of years. The apple tree is believed to be native to Kazakstan and came to the US with early settlers, spread widely as settlers moved west and south and became a mainstay crop until Prohibition when thousands of trees were cut down. Cider can be made from any kind of apple, but the most interesting cider comes from apples loaded with tannin and acids and sugar artfully blended to make a drink that's complex, interesting, and refreshing. A revival of cider and cider-apple trees has been underway in this country since the late 1970s.