These four roots of power arose as consequences of the development of agriculture, which generated human population explosions and accumulations of food surpluses capable of feeding full-time leaders, soldiers, scribes and inventors. But agriculture could originate only in those few regions endowed with many wild plant and animal species suitable for domestication, like wild wheat, rice, pigs and cattle.
Katika Semina hiyo kulikuwa na mafunzo mbalimbali ikiwa ni pamoja na Kilimo cha kisasa cha kutumia Green houses ambapo, wanasemina walipata elimu ya umuhimu wa kilimo hicho ambacho hakichukui nafasi kubwa na kinaweza kufanyika mahali popote na kwa gharama nafuu ambapo kilimo kama cha Nyanya, Matunda na Mboga mboga kinaweza kikafanyika katika Green Houses.