Assertion: potassium nitrate | /r/CapableOf | find mention
Facets:
value: in kautilya's arthashastra
type: LOCATION
Source sentences:
text: Saltpeter finds mention in Kautilya's Arthashastra (compiled 300BC - 300CE), which mentions using its poisonous smoke as a weapon of war, although its use for propulsion did not appear until medieval times.