The majority of Europeans believe in social justice, social protections, and democracy and speak more than one language. This helps give the continent a shared that unites all European citizens.

Culture.

Explanation:

Culture can be defined as the general way of life of people in a society. It typically encompasses the customs, ideals, beliefs, values, social behavior, knowledge, arts, habits, capabilities, laws and norms found among a group of people (religious, racial, or social) in human societies.

Additionally, cultures are passed along from one generation to another by communication and imitation.

The majority of Europeans believe in social justice, social protections, and democracy and speak more than one language. This helps give the continent a shared culture that unites all European citizens.