History
For History, Geography and Culture see also: Uppland, Södermanland, Roslagen, Södertörn, and Metropolitan Stockholm
The Stockholm County was established in 1714. The City of Stockholm constituted its own administrative entity under the Over-Governor of Stockholm, and was not a part of Stockholm County. The City of Stockholm, yet outside the Stockholm County, was the seat of the last mentioned county.
On 1 January 1968, the Stockholm County was united with the City of Stockholm. At the same time, the borders were redrawn in other directions too; Upplands-Bro Municipality was transferred from Uppsala County and a large part of the modern day Östhammar Municipality was transferred to Uppsala County.
Read more about this topic: Stockholm County