How does knowing its own history provide a group with a sence of unity?

Answer 1

Knowing the history of your group gives you a connection to other members if that group. It gives you something in common with other people in your group, as well as a sense of closeness and community due to your shared history. For some groups, it gives them a sense of duty or accomplishment as well. Overcoming a current or past hardship is especially effective at strengthening a group's sense of unity.

Answer 2

Well

Answer 3

well