What is a timeline?
A timeline places events in chronological order along a time axis, so you can see what happened when and how far apart things were. A good timeline is proportional: equal distances on the axis mean equal amounts of time.
Read it from left to right or top to bottom. Each marker is an event with a date and a short label, and the important milestones are usually emphasized so the story stands out from the routine entries.
When to use a timeline
- Use it to tell a company or product history, such as a startup's path from founding to Series A.
- Use it in incident reviews to lay out exactly what happened and when.
- If you need durations, overlapping tasks and dependencies, use a Gantt chart instead, since a timeline shows points in time rather than work.
How to make a good timeline
- Keep the scale honest: do not space a two-week gap the same as a two-year one.
- Label every event with a date and a few words, and put details in a note rather than on the axis.
- Highlight the three or four milestones that carry the story and leave the rest neutral.
- In MakeCharts you can paste a list of dates and events and the timeline is laid out for you.