What court case ruled that “separate but equal” law was constitutional?

How does the process of constructing a historical narrative differ from the process of creating a timeline

Sparta faces threats from without and within the city-state who posed these threats.

In the early 1900s, the national association for the advancement of colored people strongly urged the federal government to a) punish lynch mobs. b) overturn jim crow laws. c) limit integration. d) limit activist organizations.