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A 450-year map mistake gets corrected by 164 countries, plus nine more solutions episode artwork

Sep 18, 2026 23 min

A 450-year map mistake gets corrected by 164 countries, plus nine more solutions

from The Optimist Daily's Weekly Roundup

Most world maps show Greenland and Africa as roughly the same size… which is kind of unbelievable considering Africa is 14 times larger! This error has been built into classrooms, boardrooms, and institutions since 1569. Last week, 164 countries finally voted to fix it. Arielle and Karissa also cover a solar ambulance built by university students that completed its first real-world test in rural Kenya, a student baking operation in Frisco, Texas that has raised over $8,000 for food-insecure kids, and why the best time to deal with weeds is probably right now. Transcript link: https://www.optimistdaily.com/?p=1422965 Nominate a Local Changemaker (30 and under): https://us20.list-manage.com/survey?u=d2e7810fd2bcf24fb1144a7e2&id=6e0ab37520&e=28025b5010 If you have questions, comments, feedback, suggestions, or just want to say hi, send a message to: [email protected]. Want to be part of the Optimism Movement? Become an Emissary. Subscribe to our FREE Daily/Weekly Newsletter and follow us on Instagram, X, and Blue Sky. The Optimist Daily is a project of the World Business Academy. Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?lsc=41ef528d Theme and all original music by Marvin Lanes

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A 450-year map mistake gets corrected by 164 countries, plus nine more solutions

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