Assertion: shamanism | /r/HasProperty | existed for over 20,000 years
Facets:
Source sentences:
text: There is now some anthropological evidence that Shamanism has existed for over 20,000 years.
text: Given the similar nature of Rosano (2006) and Walsh’s (1996) argument, it seems that there is evidence that shamanism has existed for at least the last 20,000 years.