Norway is divided into 19 administrative regions, called counties (singular , plural (Bokmål) / fylke (Nynorsk)); until 1918, they were known as amter. The counties form the first-level subdivisions of Norway and are further divided into 428 municipalities (kommune, pl. kommuner / kommunar). Svalbard and Jan Mayen are outside the county division and ruled directly on national level. The capital Oslo is considered both a county and a municipality.