How to make
a timeline.

What is a timeline?

A timeline arranges events in chronological order so you can see when things happened and how they relate. Individual events mark moments; ranges show activities with a beginning and an end; periods group events into larger chapters.

A timeline can explain a historical era, organize research, tell a personal story, or show a project’s milestones. An interactive timeline lets a reader change the scale and open the details, so an overview and a close reading can live in the same place.

01 / FIND YOUR FOCUS

Choose the story you want to tell

Write down the question your timeline should answer. “What happened in this city?” is a starting point. “How did the city change during the railway’s construction?” gives you a clearer scope and a reason to include each event.

Choose a start and end date. For a personal timeline, that might be childhood through your next goal. For a project, start with discovery and finish with launch. You can expand the canvas as your work grows.

Pick a blank board in PlotPast’s free timeline maker, or begin with one of the editable timeline templates.

02 / GATHER THE MOMENTS

Collect events, dates, and sources

Before styling anything, make a small list of events. Give each one a short title, its date, and a note explaining why it matters. Keep the source beside the claim so you can check it later.

Keep uncertainty visible. If a source only gives a year, leave the month and day blank. If the date is estimated, mark it as approximate. A precise-looking date should never imply more certainty than your evidence supports.

03 / PUT IT ON THE CANVAS

Add your events in PlotPast

1. Open PlotPast and start a blank board or select a template. Local use needs no account.
2. Choose Add event, enter a title, and select Point in time for a moment or Time range for an event that lasts.
3. Enter the year and, when known, the month and day. Use a negative year for BCE: −753 represents 753 BCE.
4. Use Approximate for an estimated date, or choose decade, century, or millennium precision when that better matches your information.
5. Save the event. Repeat for the other moments, then drag to pan and use the zoom controls to find a useful view.

Keep titles short enough to scan. Put the explanation in the description, where readers can explore it without crowding the canvas.

04 / CONNECT THE DOTS

Use periods, lanes, and notes for context

Choose Add period for a larger chapter such as a reign, a school year, or a project phase. Periods can overlap: a cultural movement and a political era do not have to share the same boundaries.

Use parallel lanes when you want to compare stories that happen at the same time. The World War II template, for example, separates Europe, the Pacific, and the home front. A product roadmap separates Design, Engineering, and Launches.

Add descriptions, tags, and source links to events. Reserve color for a clear purpose, such as grouping a theme or distinguishing a lane. Readers should understand the grouping without having to guess what every color means.

05 / MAKE IT USEFUL TO SOMEONE ELSE

Check the timeline, then share it

Review the order, titles, and sources. Look for missing turning points, duplicated events, and dates that imply certainty you do not have. Events that sit next to each other on a timeline are not automatically cause and effect; explain a connection when the evidence supports it.

PlotPast can export PNG or SVG for presentations and documents. To make a PDF, open Story view and use its print option, then choose your browser’s Save as PDF destination. You can also share a read-only link or embed a board.

Export JSON when you want an editable backup you can re-import. Local boards are stored in your browser, so save a backup before clearing site data. No account is needed to share. Public hosted links expire after 30 days and their server copies are removed automatically. Self-contained links store the snapshot in the URL and have no expiry. Keep a JSON backup of your editable work.

Common timeline questions

How many events should a timeline have?

Include enough to answer your question. Start with a handful of key moments, then add detail where it helps explain a change. If the overview becomes hard to read, shorten titles, separate themes into lanes, or let readers zoom into a busy section.

Can I make a timeline for free without signing up?

Yes. PlotPast’s local editor is free and unlimited, and you can start without an account. Optional AI services may charge separately for model usage.

What is the difference between an event and a period?

An event records a specific occurrence, which can be a single moment or a range. A period gives a broader chapter a name and helps place multiple events in context.