The Treaty of Paris was signed on 10 February 1763 by the kingdoms of Great Britain, France and Spain, with Portugal in agreement, after Great Britain and Prussia's victory over France and Spain during the Seven Years' War. The signing of the treaty formally ended conflict between France and Great Britain over control of North America (the Seven Years' War, known as the French and Indian War in the United States), and marked the beginning of an era of British dominance outside Europe. Great Britain and France each returned much of the territory that they had captured during the war, but Great Britain gained much of France's possessions in North America. Additionally, Great Britain agreed to protect Roman Catholicism in the New World. The treaty did not involve Prussia and Austria as they signed a separate agreement, the Treaty of Hubertusburg, five days later.