Assertion: gunpowder's use | /r/CapableOf | spread by latter date
Facets:
value: between 1350
type: TEMPORAL
value: between 1400
type: TEMPORAL
value: rapidly
type: MANNER
Source sentences:
text: The use of cannon spread rapidly between 1350 and 1400, by the latter date reaching Sweden and Russia, after which cannon were known throughout Europe and were approaching a standard form.