1. Fußball-Club Kaiserslautern e. V., also known as 1. FCK, FCK (German pronunciation: [ˌɛftseːˈkaː] ), FC Kaiserslautern (pronounced [ˌɛftseː kaɪzɐsˈlaʊtɐn] ), K'lautern or colloquially Lautern (pronounced [ˈlaʊtɐn] ), is a German sports club based in Kaiserslautern, Rhineland-Palatinate. In addition to football, the club also operates in several other sports. On 2 June 1900, Germania 1896 and FG Kaiserslautern merged to create FC 1900. In 1909, the club went on to join FC Palatia (founded in 1901) and FC Bavaria (founded in 1902) to form FV 1900 Kaiserslautern.
https://en.wikipedia.org/wiki/1._FC_Kaiserslautern