Women of 20 would probably have already had three or four children and have perhaps another 10 years to live. B. Economy 1. Overwhelmingly agricultural, but in more wealthy societies there is an opportunity for some specialization in handicrafts. Housing tends to be much more dense. Potential for disease is greater.
Life spends tend to be much shorter.
As in the case of Stonehenge, there is opportunity for large scale public architecture. D. Artistic Expression 1. Often a warrior chief as well. Development of Nomadic Pastoralism. With the domestication of animals, nomadic hunting is no longer needed.