When do historians believe that the use of slavery started? 6800 BC in Mesopotamia

618 AD in China

1200 BC in the Roman Empire

3500 BC in Babylonia​

racism and segregation.

it provided for selection of government employees through competitive examinations. it also made it unlawful to fire or demote covered employees for political reasons or to require them to give political service or payment, and it set up a civil service commission to enforce the law.

explanation:

worcester v. georgia, legal case in which the u.s. supreme court on march 3, 1832, held (5–1) that the states did not have the right to impose regulations on native american land. andrew jackson refused to enforce the ruling, the decision form the basis for most subsequent indian law in the united states.

it affected it because the kingdoms (with trade) slowly got richer and richer.