There was a grouping of French colonial territories called French Indochina.
The principles of grouping (or Gestalt laws of grouping) are a set of principles in psychology, first proposed by Gestalt psychologists to account for the observation that humans naturally perceive objects as organized patterns and objects, a principle known as Prgnanz
 - US EPAHow to Install French DrainsWhat are French drains?  Why are they called French drains?

