MAY 7, 1763. Three hundred Ottawa Indians, led by Pontiac, enter Fort Detroit intent upon launching a surprise attack upon the British garrison commanded by Major Henry Gladwin. Alerted to the plan, the British are ready, and Pontiac withdraws and places Detroit under siege. Since taking control of France's North American empire, the British have alienated the Indians by ending the longstanding practice of gift-giving. Moreover, the Indians feel threatened by the influx of white settlers into the Ohio River Valley.
Indian uprisings occur throughout the Ohio River Valley.
By mid-1763, Detroit is the only British post west of Niagara, New York, that has not fallen to Indian attack. Despite being vastly outnumbered, the British at Detroit hold on. Finally they receive supplies, and Pontiac ends his siege in late October. To maintain peace with the Indians, the British close the west to white settlement. Later they will tax the American colonists to pay for their military garrisons in the west.