Assertion: buckwheat | /r/AtLocation | europe
Facets:
value: through immigrants
type: MANNER
value: via germany
type: OTHER
value: in the fifteenth century
type: TEMPORAL
Source sentences:
text: Buckwheat has been cultivated in China for about 1, 500 years, and was introduced to Europe (via Germany) in the fifteenth century, and arrived in England about AD 1600.
text: It was introduced to Europe and American countries through immigrants.