Assertion: production line | /r/HasProperty | unheard of in the western world
Facets:
value: prior to the industrial revolution
type: TEMPORAL
value: according to historycrunch.com
type: LOCATION
Source sentences:
text: The production line was unheard of in the Western world prior to the Industrial Revolution, when most products were made by a single craftsman or artisan, according to historycrunch.com.