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  3. Marriage rates by cohort
Our World in Data@OurWorldInData · Apr 10, 2025 · Line chart

Marriage rates by cohort

Our World in Data's line chart drew 25.4K views on X: 0.9x its typical post and #87 of 139 Our World in Data charts we track by views. Read Oct 10, 2026.

📊 Data update: We've just updated many of our charts on marriage and divorce!

Posted on X by @OurWorldInData (Our World in Data), Apr 10, 2025. Source: x.com · See its data

Why it spread

It spread because it hit a hot topic that week and came from an independent author, reaching 25,439 views, 152 likes, 32 reposts, 2 quotes, and 27 saves.

What worked

  • The post framed the update as a broad data refresh on marriage and divorce, inviting exploration of multiple questions rather than pushing a single finding.
  • The chart type was a line chart showing marriage share by age across birth cohorts, which suited the topic and was self labelled at a medium level.
  • The post was branded, included a source line, and came from an account with top quarter source reach, giving it credibility and visibility.

What to borrow

We could use the same form by releasing a multi question data update on a hot topic, using a line chart to show change over time or across groups, and keeping the post branded with a clear source line.

Careful

Do not over read the quote rate, which was in the bottom quarter, and do not assume the design polish or self labelling were exceptional, since both were only medium.

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 "Share of women who have ever married by age" 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 63ae993d9e6d.

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.

PathReturnsPlan
GET/api/v1/charts/63ae993d9e6dTitle, publisher, date, form, point count; with a Max key, the data linkOpen
GET/api/v1/charts/63ae993d9e6d/dataEvery point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSVMax
GET/api/v1/charts/63ae993d9e6d/render?view=1The draw-only view this page usesOpen
POST/mcpTool get_chart_data with this id, for Claude, Cursor and other agentsMax
curlMax
curl -s https://viral-chart.com/api/v1/charts/63ae993d9e6d/data \
  -H "Authorization: Bearer $VIRALCHART_KEY"
Claude CodeMax
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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Other giants using a line chart

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Questions people ask

How far did Our World in Data's "Marriage rates by cohort" chart travel?

25,439 views, 152 likes, 32 reposts and 27 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. Marriage share by age varies across birth cohorts.

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.