The American Revolution. American colonists after 1763 resisted British attempts to impose new taxes and trade controls and to restrict free westward movement. They argued against being taxed without representation. Younger men seeking new opportunities turned against the older colonial leadership. Revolution followed in 1775. British strategic mistakes and French assistance helped Americans to win independence. In 1789, they created a new constitutional structure based upon Enlightenment principles. The revolution, by extending male voting rights, created one of the world’s most radical societies. Social change was more limited: slavery continued unaffected.