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- Our World in Data
- Cancer mortality measures
Cancer mortality measures
Our World in Data's line chart drew 227.6K views on X: 8.0x its typical post and #8 of 139 Our World in Data charts we track by views. Read Oct 13, 2026.
The number of cancer deaths worldwide has more than doubled since the 1980s. Does that mean we're losing the fight against cancer? Not necessarily, because it depends on how you measure it. On this chart, you can see three ways to look at t
Why it spread
This post spread because it came from an independent author on a hot topic that week, and it reached a top quarter source audience, drawing 227,638 views, 2,700 likes, 594 reposts, 87 quotes, and 711 saves.
What worked
- The framing opens with a striking fact, that worldwide cancer deaths have more than doubled since the 1980s, then immediately asks whether we are losing the fight, which pulls readers into the answer.
- The chart shows three ways to look at the same data, letting one line chart carry a comparison of diverging mortality measures instead of a single number.
- The post is branded, shows a source line, and has a medium level of design polish and self labelling, which makes it credible and easy to follow.
What to borrow
We could take a familiar headline number, ask whether it really means what people assume, and then show several ways to measure the same thing on one line chart with a clear source line.
Careful
Do not over-read the quote rate as proof of debate, since it is only above average, and do not assume the same framing will travel just because the topic is hot that week.
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 "Change in three measures of cancer mortality" 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 7f6b33ac6842.
Approximate values. Our two readings of this chart agreed only in part (confidence 0.48 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/7f6b33ac6842 | Title, publisher, date, form, point count; with a Max key, the data link | Open |
| GET | /api/v1/charts/7f6b33ac6842/data | Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV | Max |
| GET | /api/v1/charts/7f6b33ac6842/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/7f6b33ac6842/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 "Cancer mortality measures" chart travel?
227,644 views, 2,698 likes, 594 reposts and 712 saves on X, read Oct 13, 2026. A normal post from @OurWorldInData gets about 28.6K views.
What kind of chart is it?
A line chart. Three cancer mortality measures diverge over time.
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.