William Lyon Mackenzie
The township of York, which until 1793 had been known as "Toronto", incorporated as a city (meaning it received local self-government) on March 6, 1834, taking the name of "the City of Toronto" to distinguish it from New York City and the dozen other settlements named 'York' in Upper Canada. The Tories and the Reformers fielded candidates for Toronto's first municipal election, held on March 27, 1834, with the Reformers winning a majority on the Toronto City Council. Mackenzie was elected as an alderman. The City Council then met to decide who should become mayor. Mackenzie, after being nominated by Franklin Jackes, defeated John Rolph in the vote and thereby became the first Mayor of Toronto.
York Mills
In 1953, York Mills, along with North York, was severed from York County, joining other municipalities to form the regional government of Metropolitan Toronto. The area was the site of a tragic accident on March 17, 1960, when five Italian construction workers on a water main project were killed in a tunnel fire. North York later became a borough, and then a city, and was merged with five other municipalities and a regional government to form the new "City of Toronto" in 1998.