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.
Oakwood–Vaughan
Oakwood–Vaughan has changed political boundaries on several occasions. One of the most significant changes was the result of amalgamation in 1998. Formerly part of the City of York, York became part of the City of Toronto, along with Etobicoke, Scarborough, and North York—all cities in their own right before January 1, 1998.