: a graph of events in the order they happened. Listing events in the order they happened is also called chronological order.
A timeline is a tool that organizes information. It is used to describe the order in which events happened. Timelines can also help show how events in history are related.
A timeline can cover a short amount of time in great detail, or it can offer a more general overview of a long period of time.
Timelines all include dates to show when each event happened.