Written history in the area began about 800 AD, when the DanishViking settlement ofHaithabu was founded. Later the neighbouring city of Schleswig took the place of Haithabu and became a powerful town in the 11th century. It later lost its power toLübeck.
The district was established in 1974 by merging the former districts of Flensburg-Land and Schleswig. Due to the proximity of Denmark and the regional history there is a large percentage ofDanish inhabitants.
The countryside is generally plain. TheSchlei, afirth of the Baltic Sea, is the southern border of this district. All the land north of the Schlei and south of Flensburg is called the peninsula ofAngeln. Angeln was the ancient home of theGermanic people known as theAngles, who migrated to England in the earlyMiddle Ages.
The coat of arms displays two lions, symbolizing the old duchy ofSchleswig. At the bottom of the arms there is a wavy line symbolizing the Baltic Sea and its firths.