At the time the man was able to take advantage of communication tools to create rules in the group, so that man can have something together as a group peacefully.
During the time that humans can make use of the communication as a tool for creating different rules in the group so that men can close together in groups peacefully.
At the time that human beings can take advantage of the communication as a tool to create various criteria in the group in order to ensure human beings can indeed together as a group. peace.