Population 1,019,513 (U.A,)
Oslo was destroyed several times by fire, and after the fourteenth calamity, in 1624, Christian IV of Denmark and Norway ordered it rebuilt at a new site across the bay, near Akershus Castle and given the name Christiania. Long before this, Christiania had started to establish its stature as a centre of commerce and culture in Norway. The part of the city built starting in 1624 is now often called Kvadraturen because of its orthogonal layout in regular, square blocks.
By Øyvind Holmstad - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=33475706
Oslo is the economic and governmental centre of Norway. The city is also a hub of Norwegian trade, banking, industry and shipping. It is an important centre for maritime industries and maritime trade in Europe. The city is home to many companies within the maritime sector, some of which are among the world's largest shipping companies, shipbrokers and maritime insurance brokers. Oslo is a pilot city of the Council of Europe and the European Commission intercultural cities programme.
Oslo is considered a global city and was ranked "Beta World City" in studies carried out by the Globalization and World Cities Study Group and Network in 2008. It was ranked number one in terms of quality of life among European large cities in the European Cities of the Future 2012 report by fDi magazine