The American Revolution The American Revolution, the conflict by which the American colonists won their independence from Great Britain and created the United States of America, was an upheaval of profound significance in world history. It occurred in the second half of the 18th century, in an "Age of Democratic Revolution," when philosophers and political theorists in Europe were critically examining the institutions of their own societies and the notions that lay behind them. Yet the American Revolution first put to the test ideas and theories that had seldom if ever been worked out in practice in the Old World--sep