Discuss the ethnic or gender identities in China until the 10th century

Prompt: Discuss the ethnic or gender identities in China until the 10th century
Question: How had the ancient Chinese identify as “the center of the world” or “the only civilization of the world” been established and how did it change over time from the Shang Dynasty. Discuss this issue considering the Chinese understanding of the world, experiences with other ethnic groups, trade, and/or war.