This directory collects resources on the United States of America. It is a country with a history that, while young, rivals the accomplishments of any nation in time. The U.S., known commonly as America, is located in North America south of Canada and north of Mexico. It is bounded on the east by the Pacific Ocean and on the west by the Atlantic. The country declared its independence on July 4, 1776 from British imperial rule and then, after winning in war with England, officially adopted its constitution in 1787. The United States' government is founded on a three-branch system: the executive, the legislative, and the judiciary. Each branch has a set of rights and responsibilities. The design is intended to allow governance to take place with flexibility, fairness, and accountability to the people of the United States. The most notable leader is the president, head of the executive branch and the individual who represents the nation as a whole. Outside of its revolutionary form of government, the United States is notable for its character. Great emphasis is placed on liberty in American culture. This is the result of many factors, including the country's founding as a rejection of British tyranny. Individuality is another important trait. This is modeled in the form of government. While Americans identify themselves with the nation, the make-up of the legislative branch represents each state. This allows citizens to express their individual and local needs. Learn more about American culture and history in our United States directory.