Ancient Siberian tomb reveals earliest cannabis use

A new study shows people used cannabis long ago. They may have used it about 2,800 years in the past.

This new date is 300 years before earlier findings in China. Experts have long been interested in how people used plants in the past.

Scientists studied hair and seeds from a special old tomb. They learned new things about this plant in ancient times.

The work happened at a big old burial place in Siberia. The scientists found small cannabis seeds and human hair there.

Some other experts do not fully agree with these findings. They say there is not enough proof that people consumed cannabis.