Sweden was historically divided into four Lands or Landsdelar:
Gulf of Bothnia. Österland and Norrland litterally mean Eastern and Northern lands.
The Finnish War (1808-1809) the eastern half of Sweden was ceded to Russia, thus becoming the Russian Grand Duchy Finland, and Norrland was divided into two parts. The Swedish portion of Norrland still represents more than half of Sweden's territory; it remains, however, sparsly populated compared to the south. The Swedish capital Stockholm is geographically located in the south of Sweden, but in the Swedish mindset this is rather more perceived as middle Sweden.