There is a role for the United Nations still as a Peacekeeper in today's world because they can't necessarily force a country to make or keep peace but they can go to a country with a smaller war going on and slowly make peace and as they progress with the small countries they can move onto the bigger countries to make peace.
The Quadis were early Germanic people that lived during the time of the Roman Empire. They invaded the Danube region from 166-180 A.D.
August 2, 1776 is the answer