By birth? i think? do you mean like how did they get in a certain caste? because then it would be by birth. but if you mean like what were the castes, i forget.
I would say 10,000 years ago. I did heard and read it in a book. I'm not too sure who the first man was...
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a large fleet of warships
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The Gulf War was an armed campaign waged by a United States-led coalition of 35 nations against Iraq in response to the Iraqi invasion and annexation of Kuwait.
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