Cola became popular worldwide after pharmacist John Pemberton invented Coca-Cola, a trademarked brand, in 1886, which was later imitated by other manufacturers. Most colas contain caffeine, which was originally sourced from the kola nut, leading to the drink's name, though other sources are now also used. The original cola drink by Pemberton contained cocaine from coca leaves as well.[1][3] His non-alcoholic recipe was inspired by the coca wine of pharmacist Angelo Mariani, created in 1863.[3][4]