Municipal government of Toronto
On January 1, 1967, several of the smaller municipalities were amalgamated with larger ones, reducing their number to six. Forest Hill and Swansea became part of Toronto; Long Branch, Mimico, and New Toronto joined Etobicoke; Weston merged with York; and Leaside amalgamated with East York. This arrangement lasted until 1998, when the regional level of government was abolished and Etobicoke, North York, East York, York, and Scarborough were amalgamated into Toronto the "megacity". Mel Lastman, the long-time mayor of North York before the amalgamation, was the first mayor (62nd overall) of the new "megacity" of Toronto, which is the successor of the previous City of Toronto.
Old Toronto
Old Toronto is the retronym of the area contained within the original boundaries of Toronto, Ontario, Canada, from 1834 to 1998. It was first incorporated as a city in 1834, after being known as the town of York, and became part of York County. In 1954, it became the administrative headquarters for the Regional Municipality of Metropolitan Toronto. The city expanded in size by annexation of surrounding municipalities, reaching its final boundaries in 1967. Finally, in 1998, it was amalgamated with the other cities of Metropolitan Toronto (York, North York, Etobicoke, Scarborough); and the borough of East York, into the present-day city of Toronto. This was not a traditional annexation of the surrounding municipalities (where a city absorbs the said municipalities but officially remains the same city), but rather a new municipal entity that is the successor of the original city.