Soft drinks have a long history, starting with non-carbonated beverages flavored with herbs and fruit juices.Modern soft drinks began with the invention of carbonated water in the late 18th century.Soft drinks typically contain carbonated water, sweeteners, flavorings, acids, preservatives, and optional caffeine.Major types of soft drinks include colas, citrus-flavored drinks, root beers, fruit-flavored sodas, diet drinks, and energy drinks.