The paleolithic era was the era of the beginning of humanity (including also some of human's predecessors, such as the neanderthals, until the Stone Age. Humans then had some basic tools (specially shaped stones) and even produced some art. The food was usually acquired from hunting and gathering rather than agrarian cultivation.
The Cabinet includes the Vice President and the heads of 15 executive departments — the Secretaries of Agriculture, Commerce, Defense, Education, Energy, Health and Human Services, Homeland Security, Housing and Urban Development, Interior, Labor, State, Transportation, Treasury, and Veterans Affairs, as well as the Attorney General.
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Because a lot of things have not yet been discovered and questioned as well as there being billions of things that we have absolutely no knowledge about.
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In contrast to Greek democracy, the Roman republic had a more complex institutional arrangement. Instead of a set of institutions through which one single group exercised power, the Roman republic contained multiple institutions that allowed both the few and the many to take part in political rule.
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