Well they found almost 2 pounds of weed in a 2,700 year old grave in the Gobi Desert. They did a bunch of tests on it and proved that it did in fact contain potent psychoactive properties (THC). This made scientists reevaluate their theory that back in the day they only used hemp to create clothes and rope etc. And another surprising thing was that this wasn't some bammer poo weed, by the size of seeds mixed in with the leaves, along with color and other characteristics, indicate the marijuana came from a cultivated strain. Meaning that this man picked out they male parts that are less psychoactive so it would be more chronic. No pipes or smoking devices were found so they believe they must of orally ingested it or fumigated it like the Scythian tribes north of them did. Although other cultures in the area used hemp to create random goods as early as 7,000 years ago, this find is proof that 2,700 years ago they were using it to get high.
For the full story click on the link http://www.msnbc.msn.com/id/28034925/ns/technology_and_science-science/