Riddarfjärden
Riddarfjärden (, "The Knight Firth") is the easternmost bay of Lake Mälaren in central Stockholm. Stockholm was founded in 1252 on an island in the stream where Lake Mälaren (from the west) drains into the Baltic Sea (to the east); today the island is called Stadsholmen and constitutes Stockholm's Old Town.
Stockholm Municipality
When the first local government acts came into force in Sweden in 1863, Stockholm was one of the then 89 cities of Sweden. A first City Council was elected. The area roughly corresponded with today's "Innerstaden". Large areas were annexed in 1913, 1916 and 1949. The city was outside Stockholm County until 1968, having its own governor. The local government reform of 1971 made Stockholm a unitary municipality like all others in the country.