What cannabis really is used for. The truth is that the cannabis plant has been used since ancient times.

And it hasn't been used to get a buzz with a few exceptions in the different cultures throughout the planet.

After the oil boom in the US the situation for this useful plant changed completely.

In spite of Henry Fords invention: The Hemp car. The plant gets banned as an agricultural crop.

They probably  forgot  in the eager to  discredit  the  cannabis  plant  that neither the vikings nor Columbus would have reached the coasts far away from Europe.

There were about 800 tons of Hemp-fiber  on a  full-rigged  sailing ship in the 18th century.  Rope and sails lasted  better in the salty atmosphere  of the oceans. Hemp was the major reason for Napoleons devastating war on Russia. Russian hemp supplied the English navy that threatened France. Just an example what value this plant had once.

To get a deeper insight into the full range of what hemp can be  and is used for please read the wiki-page about this topic.
Aside to fiber, the main product, hemp-seeds are rich on oil with a high nutritious value.