The word that does not belong in the set is "Mayflower Compact."
Step-by-step explanation:
The other three words—Stamp Act, Declaratory Act, and Quartering Act—are all legislative measures or acts that were related to British colonial policies and were enacted before and during the American Revolutionary period. These acts played a role in escalating tensions between the American colonies and the British government, ultimately leading to the American Revolution.
The "Mayflower Compact" is not an act or legislative measure but rather a foundational document in American history. It was a social contract created by the Pilgrims aboard the Mayflower ship in 1620 before they landed in Plymouth, Massachusetts. The Mayflower Compact established a basic framework for self-governance and cooperation among the settlers, but it predates the specific political conflicts and legislative acts that characterized the later Revolutionary period.