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, Upper Canada
Between 1710 and 1750, French traders established two trading posts on the Humber River, Magasin Royale, and Fort Toronto. The success of Fort Toronto led the French to build Fort Rouillé on the current Exhibition grounds in 1750. It only lasted until 1759, abandoned after the fall of Fort Niagara, when the French retreated to Montreal. The British arrived the next year with an army to secure the location. The British claimed all of New France after the 1763 Treaty of Paris, and extended the Province of Quebec to present-day Ontario.