The first significant population influx occurred when the Great Irish Famine brought a large number of Irish to the city, some of them transient, and most of them Catholic.By 1851, the Irish-born population had become the largest single ethnic group in the city.
In the 1660s, the Iroquois established two villages within what is today Toronto, Ganatsekwyagon on the banks of the Rouge River and Teiaiagon on the banks of the Humber River.
By 1701, the Mississauga had displaced the Iroquois, who abandoned the Toronto area at the end of the Beaver Wars.
In the 1840s, an eating house at Frederick and King Streets, a place of mercantile prosperity in early Toronto, was operated by a man of colour named Bloxom.
As a major destination for immigrants to Canada, the city grew rapidly through the remainder of the 19th century.
York was incorporated as the City of Toronto on March 6, 1834, reverting to its original native name.