This document discusses primary and secondary sources and outlines. It defines primary sources as original materials created during an event, like letters and photographs. Secondary sources are created after an event and interpret or analyze primary sources, like textbooks and history books. An outline is a method to organize ideas in a hierarchy before writing or presenting. Outlines can be topic outlines using keywords or sentence outlines using complete sentences. Outlines help organize thoughts logically and identify gaps or areas needing more evidence or research. The document provides examples of using sources to expand an outline about Indian literature.