Copenhagen (Danish: København [kʰøpm̩ˈhɑwˀn] ) is the capital and most populous city of Denmark, with an urban population of 1.4 million. The city is situated mainly on the island of Zealand (Sjælland), with a smaller part on the island of Amager. Copenhagen is separated from Malmö, Sweden, by the Øresund strait. The Øresund Bridge connects the two cities by rail and road.
Settled as a Viking fishing village in the 10th century in the vicinity of what is now Gammel Strand, Copenhagen became the capital of Denmark in the early 15th century. During the 16th century, the city served as the de facto capital of the Kalmar Union and the seat of the Union's monarchy, which governed most of the modern-day Nordic region as part of a Danish confederation with Sweden and Norway. The city flourished as the cultural and economic centre of Scandinavia during the Renaissance. By the 17th century, it had become a regional centre of power, serving as the heart of the Danish government and military. During the 18th century, Copenhagen suffered a devastating plague outbreak and urban conflagrations. Major redevelopment included the construction of the prestigious district of Frederiksstaden and the establishment of cultural institutions such as the Royal Theatre and the Royal Academy of Fine Arts. The city became the centre of the Danish slave trade during this period. In 1807, the city was bombarded by a British fleet during the Napoleonic Wars, before the Danish Golden Age brought a Neoclassical look to Copenhagen's architecture. After World War II, the Finger Plan fostered the development of housing and businesses along the five urban railway routes emanating from the city centre.
Since the turn of the 21st century, Copenhagen has seen strong urban and cultural development, facilitated by investment in its institutions and infrastructure. The city is the cultural, economic, and governmental centre of Denmark; it is one of the major financial centres of Northern Europe with the Copenhagen Stock Exchange. Copenhagen's economy has developed rapidly in the service sector, especially through initiatives in information technology, pharmaceuticals, and clean technology. Since the completion of the Øresund Bridge, Copenhagen has increasingly integrated with the Swedish province of Scania and its largest city, Malmö, forming the Øresund Region. With several bridges connecting the various districts, the cityscape is characterised by parks, promenades, and waterfronts. Copenhagen's landmarks, such as Tivoli Gardens, The Little Mermaid statue, the Amalienborg and Christiansborg palaces, Rosenborg Castle, Frederik's Church, Børsen, and many museums, restaurants, and nightclubs are significant tourist attractions.
Copenhagen is home to the University of Copenhagen, the Technical University of Denmark, Copenhagen Business School, and the IT University of Copenhagen. The University of Copenhagen, founded in 1479, is the oldest university in Denmark. Copenhagen is home to the football clubs F.C. Copenhagen and Brøndby IF. The annual Copenhagen Marathon was established in 1980. Copenhagen is one of the most bicycle-friendly cities in the world. Movia is a public mass transit company serving all of eastern Denmark except Bornholm. The Copenhagen Metro, launched in 2002, serves central Copenhagen. Additionally, the Copenhagen S-train, the Lokaltog (private railway), and the Coast Line network serve and connect central Copenhagen to outlying boroughs. Serving roughly 2.7 million passengers a month, Copenhagen Airport, Kastrup, is the busiest airport in the Nordic countries.
Copenhagen's name (København in Danish), reflects its origin as a harbour and a place of commerce. The original designation in Old Norse, from which Danish descends, was Kaupmannahǫfn [ˈkɔupˌmɑnːɑˌhɔvn] meaning 'merchants' harbour': the direct corresponding English cognates of this name would be "chapmen's haven", the city's English toponym however was acquired through Low German Kopenhagen. Copenhagen's Swedish name is Köpenhamn, a direct translation of the mutually intelligible Danish name.
By the time Old Danish was spoken, the capital was called Køpmannæhafn, with the current name deriving from centuries of subsequent regular sound change by monophthongization of /au/ to /o/ as seen in Asbjörn-Osborn, Austrie etc., and this change in pronunciation happened some time around 1400.
The city's Latin name Hafnia, from the final havn or "haven", is the namesake of the element hafnium.
Substantial discoveries of flint tools in the area provide evidence of human settlements dating to the Stone Age. Many historians believe the town dates to the late Viking Age, and was possibly founded by Sweyn I Forkbeard.
Multiple finds indicate that Copenhagen originated was a city by the 11th century. The first habitations were probably centred on Gammel Strand (literally 'old shore') in the 11th century or even earlier. The natural harbour and good herring stocks seem to have attracted seasonal fishermen and merchants from the 11th century and more permanently in the 13th century. Recent archaeological finds during work on the city's rail system revealed the remains of a large merchant mansion from c. 1020 near Kongens Nytorv. The remains of a church with graves from the 11th century were unearthed near where Strøget meets Rådhuspladsen. Excavations in Pilestræde uncovered a well from the late 12th century.
The earliest written mention of the town was in the 12th century when Saxo Grammaticus in Gesta Danorum referred to it as Portus Mercatorum, meaning "Merchants' Harbour" or, in the Danish of the time, Købmannahavn. Traditionally, Copenhagen's founding has been dated to Bishop Absalon's construction of a modest fortress on the little island of Slotsholmen in 1167 where Christiansborg Palace stands today. This was in response to attacks by Wendish pirates who plagued the coastline during the 12th century. Defensive ramparts and moats were completed, and by 1177 St. Clemens Church had been built. Attacks by the Wends continued, and after the original fortress was eventually destroyed by the marauders, islanders replaced it with Copenhagen Castle.
In 1186, a letter from Pope Urban III states that King Valdemar I gave the castle of Hafn (Copenhagen) and its surrounding lands, including the town of Hafn, to Absalon, Bishop of Roskilde (1158–1191) and Archbishop of Lund (1177–1201). Upon Absalon's death, the property was to come into the ownership of the Bishopric of Roskilde. Around 1200, the Church of Our Lady was constructed on higher ground to the northeast of the town, which began to develop around it.
As the town became more prominent, it was repeatedly attacked by the Hanseatic League. In 1368, it was successfully invaded during the Second Danish-Hanseatic War. As the fishing industry thrived in Copenhagen, particularly in the herring trade, the city began expanding to the north of Slotsholmen. In 1254, it received a city charter under Bishop Jakob Erlandsen who garnered support from the local fishing merchants against the king by granting them special privileges. In the mid 1330s, the first land assessment of the city was published.
With the establishment of the Kalmar Union (1397–1523) between Denmark, Norway and Sweden, by about 1416 Copenhagen had emerged as the capital of Denmark when Eric of Pomerania moved his seat to Copenhagen Castle. The University of Copenhagen was inaugurated on 1 June 1479 by King Christian I, following approval from Pope Sixtus IV. This makes it the oldest university in Denmark and one of the oldest in Europe. Originally controlled by the Catholic Church, the university's role in society was forced to change during the Reformation in Denmark in the late 1530s.
Before the Reformation of 1536, the city was faithful to Christian II, who was Catholic. It was successfully besieged in 1523 by the forces of Frederik I, who supported Lutheranism. Later, towers were built along the city wall. The city supported Christian II's alliance with Malmö and Lübeck but a siege from July 1535 to July 1536 forced it to capitulate to Christian III. During the second half of the century, the city prospered from increased trade across the Baltic supported by Dutch shipping. Christoffer Valkendorff, a high-ranking statesman, defended the city's interests and contributed to its development. The Netherlands had also become primarily Protestant, as were northern German states.