Assertion: marijuana | /r/HasProperty | banned by the u.s. government
Facets:
value: in 1937
type: TEMPORAL
Source sentences:
text: Although banned by the U.S. government in 1937, marijuana has been the subject of much legal wrangling since the 1980s, gradually opening the way for medicinal use in 20 states and the District of Columbia as of January 2014.