Chronology is the arrangement of events in the order they happened. It is based on dates, time periods, and sequences. This system is used to organize historical information.

Historians use calendars, records, and artifacts to place events in the correct order. Chronology can show how one event follows another across years or centuries. It is often displayed in timelines or written accounts.

Chronology is important in history and archaeology. It helps build clear sequences of past events.