Answer: 3rd century BC
Explanation: Hellenistic astronomy established the roughly spherical shape of Earth as a physical fact and calculated the Earth's circumference.
It was "a. P.B.S. Pinchback" who <span>became the first black governor in 1872, due to the fact the African Americans in the United States faced large amounts of discrimination in political positions. </span>
Answer:
These particular 'isms' were capitalism, socialism, egalitarianism, trade unionism, Chartism, and nationalism.
Explanation: