TORONTO - INTRODUCTION Toronto, city, capital of Ontario, Canada, on Lake Ontario, at the mouths of the Humber and Don rivers in the southern part of the province. A city that has redefined itself in the past 50 years, Toronto has grown to become the financial and cultural centre of Canada. Combined with the neighbouring cities of Etobicoke, Scarborough, York, North York, and the borough of East York, Toronto is the largest metropolitan area in the country. The city is part of the “Golden Horseshoe”, an urban region bounding the western shore of Lake Ontario. Once primarily made up of people of British descent, Toronto is now a cosmopolitan city with a diverse cultural and ethnic make-up. Population 4,751,400 (2000 estimate).