The age of metals began around 4000 b. c. which part of the world was the last to feel the effects of this development?

What should the christian's stand be concerning military involvement? is there ever justification for war? can a war ever be "just"? write your answer in a paragraph of 125 words.

John locke viewed the social contract as a choice or "consent of the governed", where the people possess the power to change government. how did thomas hobbes see the social contract? man is born in chains, but can be set free through good deeds. man is born happy, but becomes more miserable as he ages. man is born poor, but can rely on other individuals for security. man is born selfish, but can give up some freedom in return for security provided by the government.

Why is the treaty of paris (1763) important to the age of discovery/exploration?