Assertion: gunpowder's use | /r/HasProperty | effective
Facets:
value: against the french
type: TRANSITIVE-OBJECT
Source sentences:
text: English use of longbows was effective against the French during the Hundred Years' War, particularly at the start of the war in the battles of Sluys (1340), Crécy (1346), and Poitiers (1356), and perhaps most famously at the Battle of Agincourt (1415).