What was the cause of WW1? How were African Americans treated before and after the war?

the cause of ww1 is a mix an austria-hungry (the name of the country at the time) had a high powered person who was shot and the austrians thought it was the serbins so they declared war on serbia and russia declared war on austria-hungry and germany declared war on russia and serbia then brittan and france came and declared war on germany and austria hungry america was only in the war for the last year but they had african americans fight in it and many cocasians (white people) thanked the african americans for saving them in battle sorry about the typos hope this helps

Explanation:

d) a constitutional amendment

regarding the law, the 15th amendment was specifically designed thinking in the rights of black free men.

even though ratified on february 3, 1870, the promise of the 15th amendment would not be fully applied for a long time.poll taxes and literacy tests would allow southern states disenfranchise african americans. only in 1965 the voting rights for african americans would be actually able to vote in the south.

in 1965, president johnson signed the voting rights act, which aimed to overcome legal barriers that prevented african americans from voting as it was guaranteed by the 15th amendment to the u.s. constitution.