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.
Århus city council explicitly embraced the new spelling, as it was thought to enhance an image of progressiveness.
It is a centre for research and education in the Nordic countries and home to Aarhus University, Scandinavia's largest university, including Aarhus University Hospital and INCUBA Science Park.
Being the Danish city with the youngest demographics, with 48,482 inhabitants aged under 18, Aarhus is known for its musical history.
It is notable that the "Aa" spelling has been in use the longest.
"Aa" was also used by some major institutions between 1948-2011 as well, such as Aarhus university (AU) or the largest local sports club, Aarhus Gymnastikforening (AGF), who have never used the "Å"-spelling.