Clovis technological complex - Distinctive spear points
Neanderthals extinct in Europe - Bones stop appearing in the archaelogical record
Earliest modern humans emerge - Their skulls found at Herto, Ethiopia
Homo sapiens cross into Asia - Tools found at Jwalapuran, India
<span>Many diseases need a large population in order to survive. Hunter Gatherer populations do not offer this. Diseases will often strike, kill a few people and then disappear until the population comes into contact with an outsider again. In contrast, civilized society offers a large enough population so that a disease is able to constantly stay alive and be spread. Therefore, disease does not spread faster in agrarian societies, it just spreads more unchecked.</span>
<span>They would want to expand east+south because it would be hard to expand the other directions through deserts and mountains.
Hope this helps!! :)</span>
Well, all the civilizations did sacrifices, but ( you may need to check just be sure) i think the Incans did the least of it. The Mayans did it a bit more regularly then the Incans and the Aztecs did the most. hope this helps!
