The uprising that forced England to reconsider its colonial policies in America was the American Revolution, which began in 1775 and culminated in 1783. Triggered by growing discontent over British taxes and lack of representation, it united the thirteen colonies in their quest for independence. Key events such as the Boston Tea Party and the battles of Lexington and Concord fueled colonial resistance. The revolution ultimately led to significant military engagements, and with support from France, the colonies achieved victory. The Treaty of Paris in 1783 recognized American independence, prompting Britain to reevaluate its colonial practices and relations.