Why is it important for history to know when this or that event happened?

There are many nuances in historical science. For example, in history it is very important to know the exact date of an event. This is due to the fact that the story must reflect the exact facts. She also analyzes the events that have occurred. It is very important to consider any historical fragment in conjunction with the rest of the history. That is, together with world history. Establishing chronological dates allows you to study an event in conjunction with other events that occurred earlier or later. Thus, a holistic analysis is carried out.