In the 900s an earth rampart for the defence of the early city was constructed, encircling the settlement, much like the defence structures found at Viking ring fortresses elsewhere.
; officially spelled Århus from 1948 until 31 December 2010) is the second-largest city in Denmark and the seat of Aarhus municipality.
It is located on the east coast of the Jutland peninsula, in the geographical centre of Denmark, 187 kilometres (116 mi) northwest of Copenhagen and 289 kilometres (180 mi) north of Hamburg, Germany.
In the 1970s and 1980s, Aarhus became the centre for Denmark's rock music fostering many iconic bands such as TV-2 and Gnags.
Aarhus is home to the annual eight-day Aarhus International Jazz Festival, the SPo T Festival and the North Side Festival.
In 2017, Aarhus has been selected as European Capital of Culture along with Paphos in Cyprus.