King George III, who ascended to the throne in 1760, was involved in colonial affairs, prompting the formation of committees of correspondence in the American colonies to petition against British taxation. The Stamp Act of 1765 sparked significant opposition, with key figures like Patrick Henry and Samuel Adams arguing against taxation without representation, leading to the Stamp Act Congress which united the colonies in challenging British authority. Ultimately, while the Stamp Act was repealed in 1766 due to colonial pressure, the British Parliament simultaneously passed the Declaratory Act reinforcing its authority over the colonies.