Cola is a sweetened, carbonated soft drink flavored with vanilla, cinnamon, citrus oils and other flavorings. Most contain caffeine, which was originally sourced from the kola nut, leading to the drink's name, though other sources are now also used. Cola became popular worldwide after pharmacist John Pemberton invented Coca-Cola on March 8th, 1886. His non-alcoholic recipe was inspired by the coca wine of pharmacist Angelo Mariani, created in 1863.Most modern colas contain caramel color, and are sweetened with sugar and/or high-fructose corn syrup. They now come in numerous different brands. Among them, the most popular are Coca-Cola and Pepsi. These two companies have been competing since the 1890s, but their rivalry has intensified since the 1980s.