History of Toronto
In 1998, the six municipalities comprising Metropolitan Toronto – East York, Etobicoke, North York, Scarborough, York, and the old City of Toronto – and its regional government were amalgamated into a single City of Toronto (colloquially dubbed the "megacity") by an act of the Government of Ontario. This was despite a municipal referendum in 1997 that was overwhelmingly against amalgamation. Subsequently, Mel Lastman defeated Barbara Hall to become the first elected mayor of the megacity.
York Centre
In 1966, it was redefined to consist of the part of Metropolitan Toronto bounded on the north by the northern limit, and on the west, south and east by a line drawn from that borough limit south along Highway 400, east along Sheppard Avenue West, south along Jane Street, southeast along Exbury Road, east along Calvington Drive, south along Keele Street, east along Highway 401, south along the Canadian National Railway line, east along Lawrence Avenue West, north along the Spadina Expressway, northeast along Highway 401, north along Bathurst Street, east along Sheppard Avenue West, south along Easton Street, east along Cameron Avenue, and north along Yonge Street to the Metro Toronto limit.