Whichever spelling local authorities choose, most newspapers and public institutions will accept it.Some official authorities such as the Danish Language Committee, publisher of the Danish Orthographic Dictionary, still retain "Århus" as the main name, providing "Aarhus" as a new, second option, in brackets.The city gates funnelled most traffic through a few streets where merchant quarters were built.
Many public and religious buildings were built in and around the city; notably Aarhus Cathedral was initiated in the late 12th century by the influential bishop Peder Vognsen.
In 1441, Christopher III issued the oldest known charter granting market town status although similar privileges may have existed as far back as the 12th century.
The city ranks as the 92nd largest city in the European Union, and as number 234 among world cities. Aarhus is the principal industrial port of the country in terms of container handling and an important trade hub in Kattegat.
Major Danish companies have based their headquarters here and people commute for work and leisure from a wide area in Region Midtjylland.
There are strong indications of a former royal residence from the Viking Age in Viby, a few kilometres south of the Aarhus city centre.
The growing influence of the Church during the Middle Ages gradually turned Aarhus, with its bishopric, into a prosperous religious centre.In 2010, the city council voted to change the name from "Århus" to "Aarhus" in order to strengthen the international profile of the city. Certain geographically affiliated names have been updated to reflect the name of the city, such as the Aarhus River, changed from "Århus Å" to "Aarhus Å".It is still grammatically correct to write geographical names with the letter Å and local councils are allowed to use the Aa spelling as an alternative.Parts of the ramparts are still in existence today and can be experienced as steep slopes at the riverside and they have also survived in some place names of the inner city, including the streets of Volden (The Rampart) and Graven (The Moat).Aarhus grew to become one of the largest cities in the country by the early 16th century.As the industrial revolution took hold, the city grew to become the second-largest in the country by the 20th century.