Assertion: tin | /r/HasProperty | mined in europe
Facets:
value: around 2500 bc in the erzgebirge
type: LOCATION
Source sentences:
text: It has been claimed that tin was first mined in Europe around 2500 BC in the Erzgebirge, and knowledge of tin bronze and tin extraction techniques spread from there to Brittany and Cornwall around 2000 BC and from northwestern Europe to northwestern Spain and Portugal around the same time (Penhallurick 1986, p. 93).