It's d all of the above
it's a evil practice and mindset still going on in some indians
No Spain wasn't first to have slaves it was Europe who had the first slave's Hope this helps:)
The correct answer would be : Earned Income
Basically , all the money you earn by working is called an earned income whether you obtain it by working for somebody or run your own business. All income from your earned income are subjects to taxable income and wages
Ea told Marduk that if he was victorious he would be the head god forever if Marduk would defeat Tiamat. Ea was a very smart god though he cannot make a deal of his own. Ea provided food, entertainment and a strong date of wine to the rest of the gods and make them agree of his idea.
I am pretty sure it would be the Spanish. The Spanish were ruthless conquistadors that would do anything to win their battles back when all this was going on.