"Oslo (Acerca de este sonido [ùlu] (?·i)), llamada Christiania o Cristianía en español de 1624 a 1897 y Kristiania de 1897 a 1924, es la capital y la ciudad más poblada de Noruega, además de ser su centro político, económico y cultural. Políticamente constituye un municipio y a la vez una de las diecinueve provincias del país. Según el censo del 1 de enero de 2015, su población era de 647 676 habitantes, un 12 % de la población total de Noruega; la estimación de enero de 2015 le asignó una población de 942 084. Es la tercera ciudad y área urbana escandinava más poblada, solo superada por Copenhague y Estocolmo. Su área metropolitana se extiende a los alrededores de la provincia de Akershus y tiene una población de 1 546 706 habitantes. La superficie total comprendida por Oslo es de 154 km², de los cuales 115 km² son urbanos y 7 km² son rurales. Los espacios abiertos dentro del área urbana suman un total de 22 km². La ciudad de Oslo fue establecida como municipio el 3 de enero de 1838. Fue separada de la provincia de Akershus como una provincia independiente en 1842. El municipio rural de Aker fue absorbido por la expansión de Oslo en 1948 (y transferida de la provincia de Akershus al municipio de Oslo). La capital noruega aún comparte varias funciones importantes con Akershus y es oficialmente la capital de esta última."
"Oslo (English pronunciation: /zlo/, OZ-loh, Norwegian pronunciation: [ulu] or, rarer [uslu] or [ulu]) is the capital and the most populous city in Norway. Oslo constitutes both a county and a municipality. Founded in the year 1040, and established as a "kaupstad" or trading place in 1048 by King Harald III, the city was elevated to a bishopric in 1070 and a capital under Haakon V around 1300. Personal unions with Denmark from 1397 to 1523 and again from 1536 to 1814 and with Sweden from 1814 to 1905 reduced its influence. After being destroyed by a fire in 1624, the city was moved closer to Akershus Fortress during the reign of King Christian IV and renamed Christiania in his honour. It was established as a municipality (formannskapsdistrikt) on 1 January 1838. Following a spelling reform, it was known as Kristiania from 1877 to 1925, at which time its original Norwegian name was restored. 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 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. A survey conducted by ECA International in 2011 placed Oslo as the second most expensive city in the world for living expenses after Tokyo. In 2013 Oslo tied with the Australian city of Melbourne as the fourth most expensive city in the world, according to the Economist Intelligence Unit (EIU)'s Worldwide Cost of Living study. As of January 1, 2016, the municipality of Oslo has a population of 658,390, while the population of the city's urban area was 942,084. The metropolitan area had an estimated population of 1.71 million. The population is currently increasing at record rates, making it the fastest growing major city in Europe. This growth stems for the most part from international immigration and related high birth rates, but also from intra-national migration. The immigrant population in the city is growing somewhat faster than the Norwegian population, and in the city proper this is now more than 25% of the total."