The effects of Pontiac's War lasted for a long time. Because the Proclamation officially recognized that indigenous people had certain rights to the lands they occupied, it has been called the Native Americans' "Bill of Rights", and still informs the relationship between the Canadian government and First Nations. For British colonists and land speculators, however, the Proclamation seemed to deny them the fruits of victory—western lands—that had been won in the war with France. The resentment which this created undermined colonial attachment to the Empire. It also contributed to the coming of the American Revolution. According to Colin Calloway, "Pontiac's Revolt was not the last American war for independence—American colonists launched a rather more successful effort a dozen years later, prompted in part by the measures the British government took to try to prevent another war like Pontiac's."