Assertion: counterweight trebuchet | /r/ObjectUse | used in a variety of places
Facets:
value: by the 1120–30s
type: TEMPORAL
Source sentences:
text: Chevedden argues that given the references to new and better trebuchets that by the 1120–30s, the counterweight trebuchet was being used in a variety of places by different peoples such as the crusader states, the Normans of Sicily and the Seljuks.