The municipality received the name of Lehre on June 10, 888 and is made up of eight surrounding villages. They are Beienrode, Essehof, Essenrode, Flechtorf, Groß Brunsrode, Klein Brunsrode, Lehre, and Wendhausen with Lehre being the largest. It is an innovative and vibrant community between culture and technology. The story is re-experienced through various castles and other attractions.
In 1934, construction began on the Army Ammunition Institute in the Kampstüh Forest 2.4 km (1.5 mi) east Lehre. More than 100 buildings on 225 hectares (556 acres) were constructed and was connected to the railway system. The Institute produced ammunition for infantry weapons, anti-tank mines, tank shells, artillery guns and .38 cm. Up until February 1945, 6,000 tons of chemical weapons were transported to the Institute. It was not bombed during World War II and up until the end war, most of these weapons remained on site. In 1945, the location also housed Russianprisoners of war. On 11 April 1945, the area was liberated by the United States' 5th Armored Division and the Army Ammunition Institute was occupied without a fight. In mid 1945, the area was passed over to British troops who had a local presence until 1951. Today, many original buildings are still standing and some are in use.
Lehre rail service began when the Brunswick State Railway Company completed the Schunter Valley Railway in 1904, connecting Braunschweig with Fallersleben. This line officially ceased operation in 1998 following the opening of the Weddel loop which connected Wolfsburg and Braunschweig, bypassing Lehre.