Timelines. Timelines are excellent for sharing history, providing
context, demonstrating cause and eff ect, etc. Th e rules say it’s good
practice to limit a timeline to 10–20 items or “frames.” Th e best
timelines are visually to scale or proportional to the time range
they represent, which suggests enlisting the help of a grid again.
Or think in terms of the timeline-equivalent of a measuring tape
segmenting and parsing out your particular units of time. If your
timeline includes giant gaps, a list format may be a better choice.