Please select the word from the list that best fits the definition

The worship of many gods

Here are the words:
Polytheism
Epics
Silt
Chariot
Surplus
Architecture
Empire
Priests
Cuneiform
Fertile Crescent
Pictographs
Scribe
Alphabet
Rural
Irrigation
Ziggurat
Impact
Monarch
Role
Canals
Division of labor
Social hierarchy
City-state