Assertion: cannonball | /r/AtLocation | early times
Facets:
value: by the 17th century
type: TEMPORAL
value: from dressed stone
type: OTHER
value: from iron
type: OTHER
Source sentences:
text: Round shot was made in early times from dressed stone, referred to as gunstone (Middle English gunneston, from gonne, gunne gun + stoon, ston stone), but by the 17th century, from iron.