Wikipedia - Superettan

Superettan (Swedish pronunciation: [ˈsʉ̂ːpɛrˌɛtːan]; meaning the super first (division)) is an association football league and the second highest league in the league system of Swedish men's football. Contested by 16 clubs, it operates on a system of promotion and relegation with Allsvenskan and Division 1. Seasons run from April to October, with teams playing 30 matches each, totalling 240 matches in the season.

The league was created in 2000. The second tier of Swedish football had previously consisted of a varying number of regionalized leagues operating under the Division 2 (1924–1986) and Division 1 (1987–1999) names.

Sverige - Superettan er den nest høyeste fotballigaen i Sverige etter Allsvenskan. Ligaen består av 16 lag som spiller dobbelt runde robin, totalt 30 kamper hver. De to beste lagene rykker opp til Allsvenskan, mens det tredje laget spiller kvalifisering mot det tredje siste laget i Allsvenskan. De to nederste lagene rykker ned til Division 1. Superettan ble etablert i 2000 og har blitt vunnet av klubber som Hammarby IF, Helsingborgs IF og Malmö FF.