Sentence:  Tokens are first identified at around the same time as the local peoples changed from a life based on hunting and gathering to one based on agriculture. The tokens, as Schmandt-Besserat says, "were part and parcel of the <WSD>Neolithic</WSD> phenomenon; that is, the so-called agricultural revolution." (Before Writing 41). 
Meaning of the word marked with <WSD> tags:  Of or relating to the New Stone Age.