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.
York Centre
York Centre was originally created in 1903 from parts of York East and York West ridings. It was created when the county of York (excluding the city of Toronto) was divided into three ridings: York Centre, York North and York South. The centre riding consisted of the townships of Etobicoke, Markham, Scarborough and Vaughan, and the villages of Markham, Richmond Hill, Weston and Woodbridge. The electoral district was abolished in 1914 when it was redistributed between York East, York South and York West. In 1952, York Centre was re-designated with parts of Eglinton—Lawrence, Willowdale, York North and York West ridings.