Answer:
Timelines are useful for charting historical events, timelines are useful for identifying patterns in history, and timelines are useful for understanding what was happening around the world at different times.
Timelines display a series of events in chronological order. It is a useful tool when we want to know what happened in some historical event, step by step, or what was first, what followed and how and when ended. With timelines, we can learn how events or incidents progressed and if an action affected others or was the consequence of another.