Which individual was the premier black entertainer during the first part of the twentieth century

. Bill Robinson George Cohan Robert Frost. Bill Robinson was the premier black entertainer during the first part of the twentieth century

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: