Biogas – breathe of the Dragon

Mankind learned to use biogas long time ago. In 1-2 millennium B.C. some primitive biogas plants already existed in the territory of contemporary Germany. 

Alemans that inhabited wetlands of Elbe basin seemed to see Dragons in the marshes. They thought that fire gas that accumulated in marsh pits was bed smelling Dragon’s breathe. In order to please the Dragon they threw offerings and food remnants to the marsh. People thought that Dragon comes in the night and pits were filled with his breath. Alemans came to the idea to cover the pits with leather blankets and made leather pipes that transported the gas to their homes for cooking. This is obvious as dry wood was difficult to find and gas (biogas) solved that problem perfectly.  

 

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