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.
Amalgamation of Toronto
In Canada, the creation of municipalities falls under provincial jurisdiction. Thus it was provincial legislation, the "Metropolitan Toronto Act", that created this level of government in 1953. When it took effect in 1954, the portion of York County south of Steeles Avenue, a concession road and common township boundary, was severed from the county and incorporated as the Municipality of Metropolitan Toronto. The area north of Steeles remained in York County, which ultimately became York Region in 1971.