Assertion: gunpowder's use | /r/AtLocation | the siege of de'an
Facets:
value: in 1132
type: TEMPORAL
Source sentences:
text: The first chronicled use of "fire spears" (or "fire lances") is at the siege of De'an in 1132.
text: The first chronicled use of "fire spears" (or "fire lances") is at the siege of De'an in 1132.
text: The first chronicled use of "fire spears" (or "fire lances") is at the siege of De'an in 1132.