Source definition, any thing or place from which something comes, arises, or is obtained; origin: Which foods are sources of calcium? See more.
Primary sources are important because they allow us to review factual info without prejudice and interpretation by others. To be a true primary source (document), it must have been written or produced in the. time period being studied. If we do not have the original document we can use them as primary sources as long as they are. Word for word. A secondary source is something. that is produce.