This article is about the United States as it appears in the Worldwar series. For other versions, see the United States of America. The United States of America was a North American republic, officially founded in 1776, which gained its independence from Britain in 1783 after a lengthy revolutionary war. By the fourth decade of the 21st Century, thanks to a combination of cultural factors unique to the country and simple luck, the United States stood on the brink of surpassing the Race in terms of technological advancement.