Do you know what sparked the American Revolution? Yes, It was due to taxes such as the Stamp Act, the Tea Act, and incidents such as the Boston Massacre. However, there is one piece that few know about. The proclamation of 1763. This proclamation limited the freedom of where colonists could colonize, and contributed more anger towards the monarchy. Author Patrick Spero talks about what the Proclamation of 1763 was and how it affected colonists at the time.