1. Viking Age (8th-11th century): During this period, Norway experienced several invasions and conquests by neighboring Viking kingdoms, such as Denmark and Sweden.
2. Kalmar Union (1397-1523): Norway, Denmark, and Sweden were united under the Kalmar Union, which was a personal union between the three kingdoms. However, Norway had limited autonomy and was largely dominated by Denmark.
3. Swedish Rule (1523-1814): After the dissolution of the Kalmar Union, Norway entered into a union with Denmark. In 1536, Norway was declared a province of Denmark and lost its status as an independent kingdom. It remained under Danish rule until 1814.
4. Napoleonic Wars (1814): During the Napoleonic Wars, Norway was briefly occupied by Swedish troops in 1814 as a result of the alliance between Denmark-Norway and France. Following the war, Norway was ceded to Sweden under the terms of the Treaty of Kiel.
5. Union with Sweden (1814-1905): Norway entered into a personal union with Sweden in 1814, which lasted until 1905. Although Norway had its own constitution and parliament, it shared a common foreign policy and king with Sweden.
6. World War II (1940-1945): Norway was invaded and occupied by Nazi Germany during World War II from 1940 to 1945. The Norwegian government went into exile in London and continued to resist the occupation.
It is important to note that while Norway was conquered and ruled by other countries at different points in its history, it has also experienced periods of independence and self-governance. Norway regained its full sovereignty in 1905 after peacefully dissolving the union with Sweden.