It is pertinent to note that after Indian grievances had resulted in the start of Pontiac’s War (1763–64), British authorities determined to subdue intercolonial rivalries and abuses by dealing with Indian problems as a whole. To this end, the proclamation organized new British territories in America—the provinces of Quebec, East and West Florida, and Grenada (in the Windward Islands)—and a vast British-administered Indian reservation west of the Appalachians, from south of Hudson Bay to north of the Floridas. As a result, It forbade settlement on Indian territory, ordered those settlers already there to withdraw, and strictly limited future settlement. For the first time in the history of European colonization in the New World, the proclamation formalized the concept of Indian land titles, prohibiting issuance of patents to any lands claimed by a tribe unless the Indian title had first been extinguished by purchase or treaty.
Although not intended to alter western boundaries, the proclamation was nevertheless offensive to the colonies as undue interference in their affairs. Treaties following Pontiac’s War drew a line of settlement more acceptable to colonial settlers , but the continued westward movement of pioneers, and the settlers’ disregard of the proclamation’s provisions evoked decades of continued Indian warfare throughout the area. The addition of the balance of territory north of the Ohio River to Quebec in 1774 further exacerbated colonial conflict with Britain.