3,000 years ago, a research discovered that people were using narcotics in Spain.

Researchers have found evidence of people taking hallucinogenic drugs in Spain around 3,000 years ago. Hair from a burial site in Menorca shows that ancient human civilisations used drugs derived from plants and bushes. The findings, published in the journal Scientific Reports, showed signs of human activity at the Es Càrritx cave, on the south-western side of Menorca. An analysis of the locks, which had been dyed red during the ancient rituals, detected three psychoactive substances: atropine, scopolamine, and ephedrine. Additionally, containers were found in the cave with spiral motifs carved on the lids, which may represent a person's altered states of consciousness while under the influence of hallucinogens. Previous evidence of prehistoric drug use in Europe had been based on indirect evidence such as the appearance of drug plants in artistic depictions.