About Algerian Ligue 1
Algerian Ligue Professionnelle 1
, or Ligue 1, is the first division of Algerian association football and was formerly called Championnat National 1.
As the top division of the Algerian football league system, it is the country's primary football competition.
In each season, two of the lowest-placed teams in Ligue 1 are relegated to Ligue 2 and replaced by two of the top two teams in Ligue 2.
Founded in 1962, when Algeria became an independent nation, the league has a long history.
Until 1950, there were only regional leagues (Algiers, Constantine, Oran).
There were a few 'national' playoffs in the first decade of the 20th century. The first one took place in 1904.
Together with Moroccan and Tunisian league winners, the winners played off for the North African Championship between 1920 and 1956.
In an effort to reflect the professionalization of the league, the FAF announced on 21 August 2010 that the league's name would be changed to Ligue Professionnelle 1.