When and where did slavery exist in the world prior to slavery starting in africa ?

In the 7th century to 20th century, Arab Muslims and Europeans raided Africa and traded on Africans. In this period, a lot of Africans were sent to North Africa, America, and parts of Asian countries.

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explanation:

both are true, the congress does have the power to create banks, even if this power is not specifically described in the constitution, since there is nothing restricting it and there is power given to the congress to make "all laws which shall be necessary and proper". maryland was not allowed to tax a branch of the national bank operating there, and the supreme court decided that no state could. both of these topics were discussed in a decision of the mcculloch v. maryland case in 1819.