“Sundown towns” are all-white municipalities or neighborhoods who practice a form of racial segregation by excluding non-whites by some combination of discriminatory local laws, intimidation, or violence. Entire sundown counties and suburbs were also created by the same process. The term came from signs posted that Black or Brown people had to leave town by sundown. A list of possible sundown towns in Connecticut can be found here.
Do you live in a town that practiced sundowning? What methods were used?