The City of Halifax (est. 1841) was the capital of the province of Nova Scotia and shire town of Halifax County, and was the largest city in Atlantic Canada until it was amalgamated into Halifax Regional Municipality in 1996. It is no longer an incorporated city and is a community of HRM.
On April 1, 1996, the government of Nova Scotia dissolved the City of Halifax, and amalgamated the four municipalities within Halifax County and formed Halifax Regional Municipality, a single-tier regional government covering that whole area.
Today the area of the former City of Halifax is now referred to as an unincorporated "provincial metropolitian area" by the provincial government's place name website and the area is referred to as "Halifax, Nova Scotia" for civic addressing and as a placename.
Many thanks to Nichole for this nice card from Canada!