Assertion: ricin's use | /r/HasProperty | documented since 2000 bc
Facets:
value: in lamps
type: LOCATION
Source sentences:
text: The use of castor bean oil (eranda) in India has been documented since 2000 BC in lamps and in local medicine as a laxative, purgative, and cathartic in Unani, Ayurvedic, siddha and other ethnomedical systems.