Final answer:
The colonists asserted that by imposing taxes without representation and inhibiting self-governance, Britain had breached the social contract, a principle that a government must have the consent of the governed.
Step-by-step explanation:
When the American colonists declared independence in 1776, they argued that Britain had violated the principle of the social contract. This idea, popularized by Enlightenment philosopher John Locke, maintains that a government gains legitimacy through the consent of the governed. The colonists believed that through acts such as imposing taxes without representation, denying trials by jury, and inhibiting self-government, Britain had broken the trust underlying the social contract. Consequently, in the Declaration of Independence, they asserted their right to establish a new government that would protect their natural rights of life, liberty, and the pursuit of happiness. These Enlightenment-inspired concepts became the foundation for a new nation predicated on the will and wellbeing of its citizens rather than the dictates of a distant monarch.