The war ended in 1783 with the United States becoming the first country to gain independence from a European power.The current constitution was adopted in 1788, with the first ten amendments, collectively named the Bill of Rights, being ratified in 1791 to guarantee many fundamental civil liberties.
Cities eventually dotted the coast to support local economies and serve as trade hubs.
English colonists were supplemented by waves of Scotch-Irish and other groups.
Excluding the Native Americans, who were being conquered and displaced, the 13 British colonies had a population of over 2.1 million in 1770, about one-third that of Britain.
Despite continuing new arrivals, the rate of natural increase was such that by the 1770s only a small minority of Americans had been born overseas.
Bad weather forced his ships south to about 43° north before they could begin their exploration of the coast northward.
In March 1778, Cook landed on Bligh Island and named the inlet "King George's Sound"."United States of America", "America", "US", and "USA" redirect here.For the landmass comprising North, Central and South America, see Americas. C., and the largest city by population is New York City.The French established their own as well along the Mississippi River.Successful English settlement on the eastern coast of North America began with the Virginia Colony in 1607 at Jamestown and the Pilgrims' Plymouth Colony in 1620.The United States embarked on a vigorous expansion across North America throughout the 19th century, acquiring new territories, as a global superpower, the first country to develop nuclear weapons, the only country to use them in warfare, and a permanent member of the United Nations Security Council.