Toronto is the most populous city in Canada and the provincial capital of Ontario. It is located on the northwestern shore of Lake Ontario. Toronto, with a population of 2.6 million, is at the heart of the Greater Toronto Area (GTA) which contains 6.2 million people. The city is the anchor of the Golden Horseshoe region, which wraps around Lake Ontario from Toronto to Niagara Falls and totals over 8.5 million residents, approximately a quarter of Canada's entire population. Toronto is the fourth largest city and fifth largest urban agglomeration in North America. Toronto is sometimes referred to as The New York City of Canada because of the general feel of the city is similar to that of New York City, and because Toronto has been a popular destination for immigrants. Spawned out of post-glacial alluvial deposits and bluffs, the area was populated at different times by Iroquois and later Wyandot (Huron) peoples. The settlement by Europeans started with the French building a seldom occupied fort near today's Exhibition grounds in the mid-1700s, then grew out of a backwoods English trading post established as York in 1793 (reverting to the current name Toronto in 1834). Later in the 19th century, it grew to become the cultural and economic focus of Canada. Owing largely to the country's liberal immigration policies starting in the 1960s, and the region's strong economy, Toronto has, in recent decades, been transformed into one of the most culturally and ethnically diverse cities in the world. More than 80 ethnic communities are represented, and over half of the city's residents were born outside Canada.