Assertion: gas's use | /r/HasProperty | introduced by neilson
Facets:
value: in scotland
type: LOCATION
value: in the smelting furnace
type: LOCATION
value: in 1828
type: TEMPORAL
Source sentences:
text: The use of a blast of hot air, instead of cold air, in the smelting furnace was first introduced by Neilson in Scotland in 1828.