Final answer:
The Proclamation Line of 1763 was issued by the British government to prevent conflict between Native Americans and colonists. It restricted colonist settlement beyond the Appalachian Mountains. The Proclamation was not effective as it was disregarded by the colonists.
Step-by-step explanation:
The Proclamation Line of 1763 was issued by the British government in an attempt to prevent further conflict between Native Americans and colonists in the newly acquired lands after the French and Indian War. It declared that colonists could not settle beyond the Appalachian Mountains, reserving the territory for Native American tribes. While the British hoped to pacify the Indians and save costs, the colonists saw it as a setback to their vision of westward expansion and disregarded the Proclamation.