they have a shared culture
Culture
Common language, shared beliefs and values, similar traditions and customs, and a shared history are some of the common traits that unify a culture region. These elements help create a sense of identity and belonging among the people within that culture region.
privacy
The Influence of Communication contributes greatly to a common culture.
Pledge of Allegiance
Culture
Pledge of Allegiance
History as common memory
This process is called assimilation. It involves one culture being absorbed into another dominant culture, resulting in a common identity and shared cultural practices.
Observable culture, shared values, and common assumptions
Culture.
Roman citizenship, religion, culture, customs and patriotism.