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.
North York City Centre
The post-World War II period saw the rapid growth of the suburbs of Toronto. To accommodate the growth, the area was amalgamated into Borough of North York and Metropolitan Toronto in the 1950s. The large expansion of Ontario Highway 401, known as the Toronto Bypass, just to the south connected the district further by highway. The area was filled in by the 1960s with residential single-family subdivisions. By the 1960s, some high rise development was occurring, such as a Canadian Government Building at Yonge and Elmhurst Street and the twin-tower Sheppard Centre commercial and office complex at Yonge and Sheppard. The 1970s saw the extension of the Yonge–University line to Finch, connecting the area to downtown Toronto.