Oslo (Norwegian pronunciation: [ùʃlu] or [ùslu]) is a county and municipality, as well as the capital and largest city in Norway. Oslo was established as a municipality on 1 January 1838. Founded around 1048 by King Harald III "Hardraade" of Norway, the city was largely destroyed by a fire in 1624. The Danish–Norwegian king Christian IV rebuilt the city as Christiania (briefly also spelt Kristiania). In 1925 the city reclaimed its original Norwegian name, Oslo.