What do hisorians do when they evaluate a source of information about the same past

Historians look for causes and effects that help to explain how and why events happened. They try to see the past through the eyes of the people who lived in the time period. When they study the past, historians ask themselves questions. The answers to the questions help historians draw conclusions about the past.

shang dynasty

western zhou (ca. 1046-771 bce)

eastern zhou (ca. 771-256 bce)