In Milan, the “International Coffee Organization” set the holiday on October 1 as part of their 2015 Expo.
According to the 2012 Guinness World Records, the largest cup of joe consisted of 3,487-gallons.
For the 1932 Olympics, Brazil couldn't afford to send their athletes to Los Angeles, so the government loaded them in a ship full of coffee sold to finance the trip.
The city banned coffee because it was believed to stimulate radical thinking and idleness.