Borussia VfL 1900 Mönchengladbach e.V., commonly known as Borussia Mönchengladbach (pronounced [boˈʁʊsi̯aː mœnçn̩ˈɡlatbax]),^[1][2]Mönchengladbach or Gladbach, is a German football club in Mönchengladbach, North Rhine-Westphalia. Founded in 1900, Borussia Mönchengladbach play in the Bundesliga, the top tier of the German football league system, making their first appearance in the league during the 1965–66 season. Subsequently, the club became one of Germany's best-known, best-supported, and most successful teams, winning the Bundesliga five times during the 1970s.^[3]