Final answer:
George III established the Proclamation of 1763 to curb Colonial Expansion, separating colonists and Native American lands to avoid conflicts and control expansion. The later Stamp Act was aimed at revenue, not colonial governance.
Step-by-step explanation:
King George III took measures to limit Colonial Expansion with the Proclamation of 1763, which was created to keep the colonists on the eastern seaboard and prevent them from expanding westward. The Stamp Act was another act, passed later, with the aims of raising revenue to pay off British debt from the French and Indian War and to finance British troops stationed in the colonies. This Act was not adopted to control the colonists or to declare any colonial laws null and void, showcasing its primarily financial motivations.