sundown town

Etymology
After signs posted at town entrances warning that “colored people” (among other terms) were required to leave town by sundown.

Noun

 * 1) A place or jurisdiction that prohibits or discourages a certain class of people, typically a certain race or ethnicity, from living there or remaining there after sundown, or, in some cases, from visiting during the day.

Translations

 * Chinese:
 * Mandarin: 日落城鎮
 * Vietnamese: thị trấn mặt trời lặn