Early society perceived connection between actions performed by groups of people or leaders to a certain society and these actions moved from habit to tradition, to ritual, and to ceremony due to human desire and need for entertainment.
Theater means "place of seeing", but it is more than the buildings where performance take place.
Dionysus, the god of wine and fertility, has religious festivals called "The Cult of Dionysus" to honor him.
GREEK THEATER - European theater began in Ancient Greece. It began around 700 BC with festivals honoring their gods.