Kammala jumla mai zuwa: Na farko da aka ambaci tarihin Schliengen a cikin 820. Ya kasance a baya ga basel bishopric. A shekara ta 1796, Schliengen ya kasance wurin da aka yi yaƙi tsakanin sojojin Faransa da Jean Victor Marie Moreau ke jagoranta da kuma
Sojojin kawance karkashin jagorancin Archduke Charles na Austria. Bayan zaman duniya wanda ya kasance sakamakon Mediatisation na Jamusanci () na 1803, Schliengen ya zama wani ɓangare na Grand Duchy na Baden. Jirgin kasa ya fara isa Schliengen a ranar 15 ga Yuni 1847 lokacin da aka kammala layin zuwa Müllheim. Schliengen ya kasance wani ɓangare na, amma ya kasance wani ɓangare na gundumar Lörrach tun daga shekarar 1973.