America is a 1st world country with plenty of job opportunities and better living conditions a than most other countries.
Walter white, Langston Hughes, Claude McKay, and James Weldon Johnson were all famous 1920 African American representatives of a prominent literary movement of the 1920s - Harlem Rennaissance.
the development of both Egyptian and babylonia civilization is (A) river valley
It's hard to pin point exactly how much but historians estimate between 25-33%
