Assertion: ninja's art | /r/CapableOf | begin around 4000 b.c.
Facets:
value: in indian culture
type: LOCATION
Source sentences:
text: Those roots are found in the “art of warfare” that began around 4000 B.C. in Indian culture, was passed to the Chinese mainland, and around the 6th century, passed through the Korean peninsula and crossed over to Japan.