Assertion: fire | /r/HasProperty | essential
Facets:
value: during the succeeding 10,000 years
type: TEMPORAL
Source sentences:
text: Yet, just as the initial control of fire was essential to the development of human beings from Old Stone Age hunters of the tropical forests into the first village-dwelling farmers of the Neolithic, so fire has been essential at every stage of the growth of civilization during the succeeding 10,000 years.