Question

how did the neolithic age add to the segregation of the sexes?

how do new ideas or inventions end up spreading?
Ms. Sue
The Neolithic Age and the advent of farming meant a division of labor. The women stayed closer to the hearth and tended the crops while the men hunted and/or tended the animals.

http://www.archaeolink.co.uk/Neolithic-Age.html

New ideas and inventions spread by trade and people traveling far from their own villages.