Assertion: burner's design | /r/AtLocation | the kofun period
Facets:
value: in japan
type: LOCATION
Source sentences:
text: Early clay stoves that enclosed the fire completely, were known from the Chinese Qin Dynasty (221 BCE–206/207 BCE), and a similar design known as kamado (かまど) appeared in the Kofun period (3rd–6th century) in Japan.