Assertion: zinc | /r/ObjectUse | used in china
Facets:
value: as a component of brass
type: PURPOSE
value: by at least a.d.
type: TEMPORAL
value: according to the 2006 research
type: OTHER
value: by the ninth century
type: TEMPORAL
Source sentences:
text: Zinc was first used in China by at least A.D. 1637, and was mined and smelted in India even earlier — by the ninth century B.C., at least, according to the 2006 research published in the journal Ancient Asia.
text: Zinc was used in Rome and China more than 2000 years ago as a component of brass (see What on Earth winter 2003 issue, zinc-copper alloy).
text: Zinc (Zn) was used in Rome and China more than 2000 years ago as a component of brass which is a zinc-copper alloy.