Many African Americans where still living in poverty, and when the Great Depression hit, many white employers fired around 50% of African American workers. At this time, the KKK was very active too.
Another thing was that certain workers were still living in harsh conditions, so civil rights emerged in acts like strikes.
Locke and Montesquieu were philosophers and they focused mainly on human rights so they probably are it
The humans stopped being nomadic hunter-gatherers and were able to make their own food, instead of chasing it down, and cultures were able to be established. Mesopotamia is one example; nomadic tribes can together, learned to farm, and established a culture(and later a civilization).
