The earliest reference to the town is in a document dated 14 July 1286.[citation needed]
Brunsbuttel in 1645,Atlas Maior vonBlaeuBrunsbüttel in 1895Matthias-Boie-Haus / Ähren- und Flechtverbund
With the construction of the Kiel Canal (German:Nord-Ostsee-Kanal) in 1911, the town was divided in two.
During the opening days ofWorld War II, on 4 September 1939, theNo. 149 Squadron RAF carried out the second bombing of that war, targeting warships near the town.[2]
Brunsbüttel became an industrial area in the 1960s and 1970s. TheChemCoast Park Brunsbüttel is still the most important enterprise zone and at 2,000 hectares (4,900 acres) also the largest industrial area inSchleswig-Holstein.[3]
A terminal to import 8 billion cubic metres per annum (280 billion cubic feet per annum) ofliquefied natural gas is under construction. Originally expected to become operational in approximately 2026,[4] following the invasion of Ukraine by Russia itmay now become operational by winter 2022/23.[needs update][5]