Langenhagen is a German city in the Hanover district of Lower Saxony. It has 50,800 inhabitants.
From 1866 to 1868 Robert Koch worked in Langenhagen.
On June 18, 1972, Red Army Faction terrorist Ulrike Meinhof was arrested in Langenhagen.
On August 17, 1982, the world's first mass production of Compact Discs began in Langenhagen.
