With this particular boost in population and availability of labor arrived an increase in labor specialization.[32] What triggered the development from early Neolithic villages to the main towns, which include Uruk, and the 1st civilizations, for example Sumer, is not really particularly known; however, the emergence of increasingly hierarchical social https://dom-c-vod-rna64297.wikilinksnews.com/6147966/the_2_minute_rule_for_domácí_vodárny