A ghost light is a light that is left energized on the stage of a theater when the theater is empty and would otherwise be dark
the first 3 are all properties of a tessellation
There are three types of archaic periods:
American Archaic period which lasted form 8000BC until 2000BC
Greece Archaic period which lasted from 800BC until 480BC
Early Dynastic Period of Egypt which lasted from 3100BC until 2600BC