Answer:
The four factors that united the Greek city states were:
- Shared religious beliefs
- Language
- Government
- literature
Step-by-step explanation:
The above for factors unified the city states.
The people in each city state however had loyalty to their own city state that they refereed to as polis.
The Greek shared a language and refereed to those who did not speak their language as barbers.
They also had same religions, same structure of governments and same literature since they shared most philosophers.