QUESTION: answer this: what was russia called after the russian revolution??

ANS: the Soviet Union

QUESTION: answer this: what age did the williams sisters start playing tennis??

ANS: an early age

QUESTION: answer this: first african-american actress to win an emmy award??

ANS: Harry Belafonte

QUESTION: answer this: who originally theorized that earth was the center of the solar system??

ANS:
Nicolaus Copernicus