In present-day upstate New York, the Iroquois formed a confederacy of tribal peoples in the mid-15th century, consisting of the Oneida, Mohawk, Onondaga, Cayuga, and Seneca. The Catholic Church remained an important institution, so that even after political independence, Roman Catholicism remained the dominant religion. Many immigrants were people seeking religious freedom or escaping political oppression, peasants displaced by the Industrial Revolution, or those simply seeking adventure and opportunity. The United States Electoral College chose George Washington as the first President of the United States in 1789. The colony served as a barrier to British expansion from New England, and as a result a series of wars were fought.

Integration of Central American economies occurred under the signing of the Central American Common Market agreement in 1961; this was the first attempt to engage the nations of this area into stronger financial cooperation. Early in the 21st century, the United States experienced the Great Recession and the COVID-19 pandemic, which had a negative effect on communities. Their system of affiliation was a kind of federation, different from the strong, centralized European monarchies. Canada and the United States are the wealthiest and most developed nations on the continent followed by Mexico, a newly industrialized country. The Boston Tea Party in 1773 was a direct action by activists in the town of Boston to protest against the new tax on tea.Roosevelt implemented his New Deal programs, including relief for the unemployed, support for farmers, social security, and a minimum wage. Greenland has a small population of 55,984 for its massive size (2,166,000km 2 or 836,300mi 2), and therefore, it has the world's lowest population density at 0. Indigenous culture changed significantly and their affiliation with political and cultural groups also changed.

These apartment-like structures were often built into cliff faces, as seen in the Cliff Palace at Mesa Verde. The indigenous peoples of the Americas have many creation myths by which they assert that they have been present on the land since its creation, [68] but there is no evidence that humans evolved there. Climate in coastal California is described to be Mediterranean, with average temperatures in cities like San Francisco ranging from 57 to 70°F (14 to 21°C) over the course of the year.These are the Arizona Sun Corridor, Cascadia, Florida, Front Range, Great Lakes Megalopolis, Gulf Coast, Northeast, Northern California, Piedmont Atlantic, Southern California, and the Texas Triangle.