Its becuase people of some countries wanted that each and every person of that country should be equal, as they wanted that each and every person, whether a foreigner or born in that country if wanted to be a citizen of that country, they should be. And especially because in ancient times, the usefulness and strength of woman was not being recognised by people, and many people had the wrong idea that men are superior to women and should always be discriminated...this was also the condition with the unequality on the basis of the ranks of people and the property they owned. the rich people were always supported, the middle class people,were dicriminated little, but weren't recognised even though they were great minds, and the poor people were highly dicriminated. So, many countries adopted democracy.
i hope i helped..
Class system is the distribution of scarce resources and rewards that is determined on the basis of achieved status.
I think because it was to make sure citizens in each state has equal rights protection under the law what branch of government is the cabinet in.
The answer is B. He interested in designing machines