• Norway and Iceland enter a union with the Danish crown.

  • The Union of Kalmar unites Denmark, Sweden, and Norway.

  • Denmark cedes Norway to Sweden.

  • The Norwegian parliament proclaims independence from Sweden.

  • Norway joins the North Atlantic Treaty Organization (NATO).
  • Norway becomes a founding member of the European Free Trade Association (EFTA).
  • Oil and gas deposits are discovered in the Norwegian sector of the North Sea. Exploitation of these resources throughout the 1970's leads to oil and gas exports comprising nearly one-third of the nation's annual export earnings.
  • Norwegian voters reject membership into the European Economic Commission by a 6% margin.
  • Norway signs a free trade agreement with the European Economic Commission.
  • Norwegians reject membership of the European Union in a referendum by a narrow margin of 5%.

  • Extreme right-winger Anders Behring Breivik carries out a mass shooting and bomb strike, resulting in the worst massacre in modern Norway history. 

Sources:

BBC News open_in_new
Britannica open_in_new