In the nineteenth century, historians tried to lift their scholarship to a higher level, declaring that they would rely only upon documented facts. However, as noted historian E. H. Carr wrote in his essay, What Is History?, even this does not guarantee the final truth about the past. The next question is, “Which facts?” This lesson will include two more questions that historians must always ask: What is significant about a particular event? What makes it important enough to include in the history of a given time and place?