section_path: History/Early modern period
section_name: Early modern period
paragraph_text: Early modern period
  
  After Sweden broke out of the Kalmar Union in 1521, Norway tried to follow suit, but the subsequent rebellion was defeated, and Norway remained in a union with Denmark until 1814. This period was by some referred to as the "400-Year Night", since all of the kingdom's intellectual and administrative power was centred in Copenhagen.
  
  With the introduction of Protestantism in 1536, the archbishopric in Trondheim was dissolved; Norway lost its independence and effectually became a colony of Denmark. The Church's income and possessions were instead redirected to the court in Copenhagen. Norway lost the steady stream of pilgrims to the relics of St. Olav at the Nidaros shrine and, with them, much of the contact with cultural and economic life in the rest of Europe.
  
  Eventually restored as a kingdom (albeit in legislative union with Denmark) in 1661, Norway saw its land area decrease in the 17th century with the loss of the provinces Båhuslen, Jemtland, and Herjedalen to Sweden, as the result of a number of disastrous wars. In the north, its territory was increased by the acquisition of the provinces of Troms and Finnmark, at the expense of Sweden and Russia.
  
  The famine of 1695–1696 killed roughly 10% of Norway's population. The harvest failed in Scandinavia at least nine times between 1740 and 1800, with great loss of life.