No taxation without representation the House of Commons must include colonial representatives when it voted on colonial matters, or operate by using the consent of the colonial Assemblies. The Americans rejected the Stamp Act of 1765 brought in by British Prime Minister George Grenville, and violently rejected the remaining tax on tea imports, under the Tea Act passed in May 1773, at the Boston Tea Party on December 16, 1773. The Parliament considered this an illegal act because they believed it undermined the authority of the Crown-in-Parliament. When the British then used the military to enforce laws that the colonists believed Parliament had passed
Sons of Liberty the flags, although other color combinations were used, such as green and white or yellow and white. At various times, small secret organizations took the name "sons of liberty". They generally left very few records. The name was also used during the American Civil War. By 1864, the Copperhead group the Knights of the Golden Circle set up an offshoot called "Order of the Sons of Liberty". They both came under federal prosecution in 1864 for treason, especially in Indiana. A radical wing of the Zionist movement launched a boycott in the U.S. against British films in 1948, in response