Assertion: anthracite | /r/ObjectUse | used for first time
Facets:
value: around 1769
type: TEMPORAL
value: by his brother
type: OTHER
Source sentences:
text: Anthracite coal was first found in 1762, and then was used for the first time around 1769 by Obadiah Gore and his brother in their blacksmith shop in Wilkes-Barre.