East York
In 1998, East York, along with North York, York, Scarborough, Etobicoke and Old Toronto, were amalgamated into the new "megacity" of Toronto. East York's last mayor was Michael Prue who went on to become city councillor for East York, and then a Member of Provincial Parliament for Beaches—East York in 2001. Between 2002 and 2005, the East York Civic Centre's "True Davidson Council Chamber" was used to hold the Toronto Computer Leasing Inquiry/Toronto External Contracts Inquiry.
New Toronto
In 1953 the Town of Mimico, Town of New Toronto, Village of Long Branch, Etobicoke Township, Village of Swansea, Village of Forest Hill, Village of Weston, Town of Leaside, East York Township, North York Townsip, York Township, Scarborough Township and City of Toronto joined together to create a new common level of government: Metropolitan Toronto (Metro). Each municipality retained its own town council and government, but several infrastructure departments were transferred to Metro. This lasted until 1967, when the number of municipalities in Metro was reduced.