tckyoghcul tckyoghcul 03-11-2020 History contestada Refer to the map. A map showing The Proclamation Line of 1763. The Proclamation Line of 1763 was primarily created to prevent American occupation of British outposts in the Great Lakes region. restrict British settlement in the western territories to reduce conflict with American Indians. reduce tensions with Spain over the possession of disputed territories. end Pontiac’s Rebellion