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 East
In 1914, the East Riding of York was recreated out of York Centre and York South ridings, and was defined as consisting of the township of Scarboro, and the eastern portion of the city of Toronto south of Danforth Avenue and east of Pape Avenue. The electoral district was abolished in 1924 when it was redistributed between Toronto—Scarborough and York South ridings.