Stone Age man took drugs, say scientists – Telegraph: “Scientists believe that the drug being used was cohoba, a hallucinogen made from the beans of a mimosa species. Drugs such as cannabis were not found in the Caribbean then.
Opiates can be obtained from species such as poppies, while fungi, which was widespread, may also have been used.
Archeologists have suggested that humans were extracting mind-expanding drugs from mescal beans and peyote cacti as far back as 5,000 years ago, but have not found direct evidence that this is true.
They consider that drugs were being used to induce spiritual or trance-like states by people who had religious beliefs.”