Many eventually settled in Quebec or Louisiana, while others returned to the regions of New Brunswick and Nova Scotia. Chéticamp, Nova Scotia and the Magdalen Islands have significant communities. In Louisiana their descendants became known as the Cajuns, a corruption of the French "Acadiens". By the mid 1700s the French settlers were well established with a population around 70,000, mainly due to natural increase. The European population had grown slowly under French rule. The British Thirteen Colonies to the south along the Atlantic coast grew in population from natural increase and more new settlers from Europe. By 1760, almost 1.6 million people lived in the British colonies, a ratio of approximately twenty-three to one compared to New France. The population of the New England colonies alone in 1760 was nearly 450,000. French culture and religion remained dominant in most of the former territory of New France until the arrival of British settlers led to the later creation of Upper Canada (today Ontario) and New Brunswick. The Louisiana Territory, under Spanish control since the end of the Seven Years' War, remained off-limits to settlement from the thirteen American colonies. Twelve years after the British defeated the French, the American Revolutionary War broke out in the Thirteen Colonies. Many French Canadians would take part in the war, including Major Clément Gosselin and Admiral Louis-Philippe de Vaudreuil. After the British surrender at Yorktown in 1781, the Treaty of Versailles gave all former British claims in New France below the Great Lakes into the possession of the nascent United States. A Franco-Spanish alliance treaty returned Louisiana to France in 1801, but French leader Napoleon Bonaparte sold it to the United States in the Louisiana Purchase in 1803, ending French colonial efforts in North America. The portions of the former New France that remained under British rule were administered as Upper Canada and Lower Canada, 1791–1841, and then those regions were merged as the Province of Canada during 1841–1867, when the passage of the British North America Act of 1867 instituted home rule for most of British North America and established French-speaking Quebec (the former Lower Canada) as one of the original provinces of the Dominion of Canada. The former French colony of Acadia was first designated the Colony of Nova Scotia but shortly thereafter the Colony of New Brunswick, which then included Prince Edward Island, was split off from it. In Canada, the legacy of New France can be seen in the enduring Francophone identity of its descendants, which has led to institutional bilingualism in Canada as a whole.