The study of history involves the study of historical periods. Historians use a variety of sources to learn about the past, including written documents, archaeological evidence, and oral histories. They also use a variety of methods to analyze the past, including historical criticism and historiography.
The study of history can help us to understand the present and to plan for the future. By learning about the past, we can learn from the mistakes of others and make better decisions for our own lives and for our world.