This document summarizes the key approaches to historiography across different time periods and schools of thought. It discusses ancient historiography from Greece and Rome, medieval and Enlightenment historiography, the German school including Marxism, modern trends like the Annales School, nationalist historiography in India, Hindutva interpretations, and post-colonial historiography in India. The document proposes a new Twenty-First Century School of Historiography that emphasizes objective, data-driven approaches and addresses the pitfalls of ideology-driven interpretations. It seeks to ensure historians act in the interests of science, society, and education.