In the 1930s, after the appointment of Henry J. Anslinger as the commissioner of the newly-established Narcotics Bureau, hemp cannabis was declared a narcotic and hemp farming was banned in the USA.
Hi malembe yava 1930, endzhaku ka kuthoriwa ka Henry J. Anslinger tani hi mukhomixinari wa Narcotics Bureau leyi yahaku tumbuluxiwaka, hemp cannabis yivuye yitekiwa xiwela ehansi ka swidzhahiwa kutani swiendla leswaku kurimiwa ka hemp e USA swiyirisiwa.