Final answer:
France lost all of its land holdings on the North American Continent under the Treaty of Paris in 1763, marking the rise of Great Britain as the major power in eastern North America.
Step-by-step explanation:
Under the Treaty of Paris that ended the Seven Years' War in 1763, France lost all of its land holdings on the North American Continent. This treaty marked a significant turning point in global politics, with Great Britain becoming the undisputed European power in eastern North America. Previously, France had maintained a strong foothold in the region, but by the conclusion of the treaty, it ceded vast territories to the British, except for a few islands in the Caribbean. Spain also experienced territorial changes but did not lose all of its American holdings as France did.