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- Maternal age in Europe
Maternal age in Europe
Our World in Data's line chart drew 28.6K views on X: 1.0x its typical post and #77 of 139 Our World in Data charts we track by views. Read Oct 10, 2026.
Most births in Europe are to mothers in their thirties, For many decades, most children in Europe were born to mothers in their twenties. However, since the mid-1970s, there has been a steady increase in the number of women giving birth in
Why it spread
It spread because a clear, self-explaining line chart on a topic many people can relate to was posted by an independent author with top-quarter source reach, earning 294 likes, 67 reposts, 4 quotes, 70 saves and 28,584 views.
What worked
- The post explains itself, so readers understand the trend without extra context.
- The chart is highly self-labelling, which makes the message easy to grasp at a glance.
- It comes from an independent author with top-quarter source reach, giving it credibility and distribution.
What to borrow
We could use the same form with our own data by pairing a simple line chart with a plain-language headline that states the main trend directly.
Careful
Do not over-read the low quote rate or assume the same framing will work for every topic, and do not copy the branded style without checking whether it fits our own voice.
Written by our analysis model from the measured numbers above, not by Our World in Data.
Make it yours
Your numbers, in this line chart.
Starts from the real numbers of "Most births in Europe are to mothers in their thirties" by Our World in Data. Replace every number with yours before you post. Make one like this, step by step
Free pictures carry a small "Made with ViralChart" line. That line is how other people find us.
API · Max
Use this chart via API
On the Max plan you can pull this chart's numbers with the provenance of each one, as JSON or CSV, with its redraw spec, or call it from an agent over MCP. Chart id ea393a01cce4.
Approximate values. Our two readings of this chart agreed only in part (confidence 0.30 of 1), so check the original before you quote a number. The API marks it lowConfidence, and ?min_confidence=0.5 leaves it out.
| Path | Returns | Plan | |
|---|---|---|---|
| GET | /api/v1/charts/ea393a01cce4 | Title, publisher, date, form, point count; with a Max key, the data link | Open |
| GET | /api/v1/charts/ea393a01cce4/data | Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV | Max |
| GET | /api/v1/charts/ea393a01cce4/render?view=1 | The draw-only view this page uses | Open |
| POST | /mcp | Tool get_chart_data with this id, for Claude, Cursor and other agents | Max |
curl -s https://viral-chart.com/api/v1/charts/ea393a01cce4/data \
-H "Authorization: Bearer $VIRALCHART_KEY"claude mcp add --transport http viralchart https://viral-chart.com/mcp \
--header "Authorization: Bearer $VIRALCHART_KEY"60 requests a minute per key; over that you get 429 with Retry-After. Up to 5 keys per account, made on your account page and shown once. Without Max, the data route answers 402 with a link to the plans. The numbers describe a chart its publisher owns, and every file carries a license note.
More from Our World in Data
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Questions people ask
How far did Our World in Data's "Maternal age in Europe" chart travel?
28,584 views, 294 likes, 67 reposts and 70 saves on X, read Oct 10, 2026. A normal post from @OurWorldInData gets about 28.6K views.
What kind of chart is it?
A line chart. Most births in Europe are to mothers in their thirties.
Can I use Our World in Data's chart?
Use the format, not the picture. The chart, logo and design belong to Our World in Data. ViralChart redraws the chart type with your numbers and words, and credits the original publisher.