Cannabis has been socially accepted in many places for millennia, Hallucinogens, such as peyote and psilocybin, have been part of religious ceremonies in the Americas and elsewhere for thousands of years. Cannabis, peyote, psilocybin and coca have probably been used longer than alcohol, as they can be easily harvested and immediately ingested; alcohol requires some knowledge of fermentation, time and patience. The only drugs which do not have a long history of use were only recently invented, such as amphetamines, LSD and Ecstacy. There are, however, natural drugs similar in both effects and chemical structure to these, such as Ephedra and LSA, which have been used for a long time.