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.
Government House (Ontario)
After the destruction of the Fort York house, York did not have another Government House until after the War of 1812. In 1815 the government purchased Elmsley House, a more commodious Georgian residence for its Lieutenant Governor. The next Government House was located in a wooded area to the west of the settled portion of the (then) Town of York, roughly midway on the block now occupied by Roy Thomson Hall and Metro Hall in downtown Toronto. Built in 1798, the residence had been the home of the Chief Justice and Speaker of the Legislative Assembly, John Elmsley, and it served as the colony's Government House from 1815 to 1841 (and intermittently from 1841 to 1858, during some of the times when Toronto served as the capital of the Province of Canada). For many years after its purchase by the government, the residence was still known by the name of its former owner, with the correspondence of the Lieutenant-Governor typically dated from "Elmsley House".