Y are u learning that stuff in history?? xD
Yes, slaves built the great pyramid of Giza
<span>military they pledged for the common defense and the stronger and bigger the were the better protection</span>
Wide spread famine and Poverty
The best option regarding a direct cause of job specialization in early human civilizations would be "<span>a. Development of agriculture," since this meant that there was a surplus of food--meaning that people could focus on things other than obtaining and growing food. </span>
