A horizontal time axis with discrete event markers and inline labels.
A free, animated event timeline you can read here or embed on any website, from Scrollchart.
Event Timeline
An event timeline places discrete happenings on a single horizontal axis. Each event is a labeled marker anchored to a specific date, with leader lines alternating above and below the spine so nearby labels do not collide. The result lets a reader scan a sequence of milestones in a single glance without tracking a continuous variable.
Typical use cases include product launch histories, regulatory approval dates, clinical trial enrollment milestones, and narrative journalism where a sequence of events must be anchored to real dates.
The horizontal axis is time, running from the earliest event on the left to the most recent on the right. Each filled circle marks the exact date of one event. The circle connects via a short vertical leader line to a text label; labels alternate above and below the axis so closely spaced dates stay readable.
Circle position along the axis is the only data encoding: there is no Y-axis value. When two events occur close in time, their markers sit near each other on the axis but their labels spread apart vertically. Reading left to right follows the chronological sequence.
Editorial pages where a quick visual replaces a wall of text
Content-marketing posts that need a clean, branded illustration
Source & accuracy
This event timeline is an editorial illustration built to represent the concept accurately. Where it shows figures, they are typical or representative values chosen to make the relationship clear, not a single underlying dataset. The diagram and its explainer are reviewed and maintained centrally, and updated over time as understanding improves.
What an event timeline shows
An event timeline places discrete events along a single time axis, usually horizontal, with markers and inline labels at the point each event occurred. Unlike a continuous line chart, which tracks a quantity changing over time, a timeline records when distinct things happened. The spacing between markers reflects the elapsed time between events, so clusters and gaps are immediately visible.
Timelines suit histories, project milestones, product release sequences, and any narrative where the order and timing of events is the main message.
Designing a readable timeline
Clarity depends on a consistent, linear time scale so that distances are proportional to durations; breaking that scale can mislead. When events cluster tightly, labels are often staggered above and below the axis or connected by leader lines to avoid overlap. Choosing the right granularity matters: a timeline spanning centuries hides detail that a day-by-day view would show, so the axis range should match the story being told rather than cramming every event onto one line.
Embed this diagram
Add this animated event timeline to your own site. Copy one line of HTML, or use the embed builder for theme and sizing options.
Reference
What this is
A free, embeddable, animated event timeline for any website.
Who uses it
Data journalists, Researchers & academics, Content marketers, News organizations.
How to embed
Copy one line of HTML. No signup. No watermark. Works in WordPress, Webflow, Ghost, Substack, plain HTML.
File size
iframe embed, ~80 KB gzipped (loads on demand, does not block your page paint).
License
Free forever. Editorial explainer text included; updated centrally over time.
Copy the universal HTML snippet, the WordPress shortcode, or an iframe fallback -
see the WordPress plugin page for details. Any format keeps
the same Core Web Vitals profile and the same explainer text.
By embedding, you acknowledge the diagram and explainer text are served from scrollchart.com and may be updated from time to time to reflect new research or to link to relevant sources within the explainer.
Frequently asked questions
Where can I get a free animated "Event Timeline" for my website?
Scrollchart provides "Event Timeline" as a free, embeddable animated diagram you can add to any website with one line of HTML. No signup is required and there is no watermark. The diagram and its explainer text are served from scrollchart.com, so the embed stays current without any maintenance on your end.
How do I embed a event timeline in a blog post or article?
Paste the one-line HTML snippet from the Scrollchart diagram page into your post editor. It works in WordPress, Webflow, Ghost, and plain HTML with no plugin required. The animated diagram and its explainer text load from scrollchart.com and render directly in your page DOM.