Final answer:
The Proclamation of 1763 was enacted by the British to prevent conflicts with Native Americans and the French post-Seven Years' War and to ease the cost of defending the frontier. It restricted colonial expansion west of the Appalachians, which many American colonists viewed as tyrannical.
Step-by-step explanation:
The British government enacted the Proclamation of 1763 mainly to prevent further conflict with Native Americans and the French, and to avoid the substantial costs of defending the frontier. This proclamation came after the Seven Years' War when Britain faced significant debt and sought to simplify frontier management by establishing the Proclamation Line, which restricted colonial westward expansion. Settlers were forbidden from purchasing land or settling west of the Appalachian Mountains, as this area was reserved for Native American tribes, although trading by licensed white traders was permitted under certain conditions. While the British framed it as beneficial to the colonies, hoping to assuage fears and mistrust, many colonists saw the Proclamation as a form of tyranny, as it inhibited the westward expansion they felt they had earned by fighting in the war.