1. What are primary and secondary sources? - Primary sources are information provided by people who were involved in historical events or who witnessed the events.
2. How do historians make sure that their sources are reliable ? - Historians conduct the credibility, consistency and corroboration test.
3. Why and when is it necessary for historians to revise their interpretations of past events? - Historians revise their interpretations of past events to update their views when new evidence becomes available.
