By now, you probably know about coffee, the hot sludge made from beans that people like to drink after waking up from their nightmares.
The coffee plant, which was discovered in Ethiopia in the 11th Century, has a white blossom that smells like jasmine and a red, cherry-like fruit. Back then, the leaves of the so-called "magical fruit" were boiled in water and the resulting concoction was thought to have medicinal properties.
Congratulations, now you know everything about this acrid, black liquid. Now dump it out, and go drink some wine.