(Note to our non-American readers: today we celebrate Columbus Day in the USA. Had he sailed in the service of his homeland, the Republic of Genoa, the language of much of the New World would be Italian instead of Spanish. An interesting detail is that he never acknowledged that he had found a new continent.)
If Columbus had not carried some shoots of sugar cane from the Canary Islands to the West Indies on his second voyage, somebody else would have, eventually.
(Sugar cane, a grass, is native to some Pacific Islands, but it spread to India and then around the warm parts of the world. Sugar is good.)
The West Indies proved to be a good place to grow sugarcane. Once the natives were wiped out in hard labor on the Spanish and French cane plantations, importing slaves from Africa was economically sensible if morally indefensible. Thus began the slave trade to the New World and, eventually, the cane/molasses/rum/slave circuit.
We visited Columbus' nice house on Grand Canaria in Las Palmas last fall. By sailing ship, of all things. It is still a nice big handsome house.
Cane is still grown to some extent on the Canaries, and they are proud of their rum, Arehucas.