During World War II, the federal government encouraged American farmers to grow hemp to help the war effort.
IEka malembe ya nkarhi wa nyimpi ya misava yavumbirhi (Second World War), va US army vahlohletele varimi va Amerika kubyala hemp leswaku vata endla tintambhu na textile leswi aswinga xaviwi ematikweni yale handle hikwalaho ka nyimpi leyi ayiri kona.