Cream soda is one of the oldest recorded sodas that dates back as far as the 1800s. The first recipe for it was written in an 1852 edition of Michigan Farmer, where someone named E.M. Sheldon concocted a recipe that included water, cream of tartar, Epsom salts, sugar, tartaric acid, milk, and an egg. It looks a lot different than the cream soda we know today, which is heavy on vanilla and caramel.