History = the study of the past. It's coming from the Greek word
Historia , which means "knowledge that comes from investigation".
History is about the past of humans, which is studied by historians. They help us understand who we are.
Very important in history: sources! They give us an image of the past. Some sources are more reliable than others. For example: a photograph of a WW1 trench from 1915 is more reliable than a drawing of the trench today,