Long Before Amsterdam’s Coffee Shops, There Were Hallucinogenic Seeds

Black henbane has been found at archaeological sites in the Netherlands that date back to the Neolithic Period. But because it is a wild plant that readily grows in the disturbed soil near settlements, experts have been unable to ascertain whether it was used by people or was just part of the environment.In 2008, for example, archaeologists found a Roman-Era ceramic beaker in Voorburg that had been filled with…