... have? How can you tell which sources are the best for yourresearch paper without having to read through everything thatyou’ve found? This lesson will show you what to look for in yourmaterials ... articles from a particular timeperiod■Physical, geographical, or topographicalmaps■Official documents—such as the census orother collections of statistics■Paintings, prints, drawings, and ... history, aswell as information about how people in thepast perceived the physical world. Official doc- uments serve as legal statements of historicalevents, people, and places. Any visual sources—paintings,...