An event every year that begins at 00:00 on day 9 of October, repeating indefinitely
When: October 9
First occurrence: 1969
Created by Universal Postal Congress in 1969
World Post Day is the anniversary of the Universal Postal Union (UPU), which started in 1874 in Switzerland. This was a great day for people who wanted to send letters
to anywhere in the world. Instead of national systems who had to establish
connections which each country individually, finally there was a post delivery system that operated on a global system.