Was there a sign warning blacks not to let the sun set on them outside of atlanta up to the 70's?

Yes, there were signs in certain areas of the South, including around Atlanta, that warned Black people not to let the sun set on them. These signs were part of a broader system of racial intimidation and segregation, reflecting the pervasive racism and violence of the Jim Crow era. Such warnings served as a grim reminder of the dangers faced by Black individuals in these communities during that time.