Answer:
The 14th amendment
Explanation:
It is the 14th amendment. Under this amendment, it addresses citizenship rights and equal protection under the law. However, this amendment of the constitution mainly failed in the South where there was a lot of segregation.
missionaries
I don't have the list but this is the closest answer I know
Admiral Zheng He navigated to present-day Madagascar and helped to expand the Chinese empire into Africa.
chronology is the right one