The outbreak of the American Revolution was primarily sparked by growing tensions between the American colonies and British authorities, culminating in events like the Boston Tea Party. The British government imposed several taxes and laws, such as the Stamp Act and the Townshend Acts, which the colonies viewed as unjust and lacking representation. The Intolerable Acts further inflamed colonial resentment, leading to organized resistance and the formation of the First Continental Congress. The conflict escalated after confrontations such as the Battles of Lexington and Concord in April 1775, where armed conflict officially began, marking the revolt against British rule.