What factors make studying the past so challenging for historians?

Studying the past is challenging for historians due to the scarcity and reliability of primary sources, which can lead to incomplete or biased narratives. Additionally, the context in which events occurred may be difficult to interpret, as cultural, social, and political dynamics often influence historical records. Historians also face the challenge of reconciling differing interpretations and perspectives, as well as the ever-evolving nature of historiography itself, which can reshape understanding over time.