The United States emerged as an independent nation in 1776 following the American Revolution against British rule. Over the following centuries it expanded across the North American continent and developed into one of the world’s largest political and economic powers. As the federal government grew, the postal system became a vital institution linking a vast and rapidly expanding country, carrying correspondence, commerce, and news across great distances.The United States has produced one of the most extensive and influential bodies of postage stamps in the world. The first federal issues appeared in 1847, featuring portraits of Benjamin Franklin and George Washington. Early stamps were typographic issues printed by private security printers such as Rawdon, Wright, Hatch & Edson, while later production was handled primarily by the Bureau of Engraving and Printing in Washington, D.C. U.S. stamps are particularly known for their finely engraved designs, portraying presidents, historical figures, national monuments, and events central to American history.The United States used the Dollar currency system, divided into 100 Cents, which appears on the denominations of its stamps.