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Introduction to United States of America

Gilad James, PhD

出版	Gilad James Mystery School, 1952
主題	History / United States / 20th Century
ISBN	32690194839783269019488
URL	http://books.google.com.hk/books?id=zhfAEAAAQBAJ&hl=&source=gbs_api
EBook	SAMPLE

註釋

The United States of America, commonly referred to as the United States or simply America, is a federal constitutional republic located in North America. The country is composed of 50 states, a federal district, and several territories and is the third-largest country in the world in terms of both land area and population. The country is a melting pot of cultures, religions, and ethnicities, making it one of the most diverse nations on Earth. The United States is also one of the world's largest economies, and is home to some of the most innovative and successful companies in history. The history of the United States is a complex one, shaped by both internal factors and external influences. The country was initially colonized by Europeans in the 16th and 17th centuries, and gradually developed into a powerful nation as it expanded its borders both westward and overseas. The country was involved in several major conflicts throughout its history, including the American Revolution, World War I, World War II, and the Cold War. In recent years, the United States has been faced with a number of challenges, including social and economic inequality, political polarization, and rising geopolitical tensions. Despite these challenges, however, the United States remains a beacon of freedom and democracy, continuing to attract immigrants from all over the world who seek the opportunity to live in a land of liberty and opportunity.