First “Hemp” was medicine, then bast fiber, then grain, then hurd, then whatever was in trichomes such as terpenes and CBD.
Next “Hemp” was CBD from U.S. biomass converted to THC and Frankenoids then CBD from cheaper foreign CBD, then a non-tobacco tobacco replacement.
Then it was acid-form marijuana, proving the joke that is Prohibition.
While now fiber is making a comeback, grain never left it just was quietly sold in thousands of stores weekly.
And there’s been more Hemp product and market development in the last 10 years than in the previous 10,000, making Popular Mechanic’s 1938 claim of “25,000 products from hemp” even more hyperbolic.