Latin American society was changed by a wave of immigrants from "Europe," since it was the Europeans (especially the Spanish and the Portugese) who colonized Latin America for many years.
George Washington is often called the “Father of His (or Our) Country.” He not only served as the first president of the United States, but he also commanded the Continental Army during the American Revolution (1775–83) and presided over the convention that drafted the U.S. Constitution.
European nations maintained a balance of power through wars and shifting alliances.
A river valley civilization or river culture is an agricultural nation or civilization situated beside and drawing sustenance from a river. A "civilization" means a society with large permanent settlements featuring urban development, social satisfaction, specialization of labor, centralized organization, and written or other formal means of communication. A river gives the inhabitants a reliable source of water for drinking and agriculture. Additional benefits include fishing, fertile soil due to annual flooding, and ease of transportation. The first great civilizations, such as those in Mesopotamia and Egypt, all grew up in river valleys.