https://www.history.com/this-day-in-history/keeling-curve-carbon-dioxide-levels-discoveredSupport the show on Patreon

Today In History - Keeling Curve, showing increase of carbon dioxide in Earth's atmosphere, is discovered

An automated daily podcast that covers an event from today in history.

Society & Culture

https://www.history.com/this-day-in-history/black-sox-scandal-mlb-white-soxSupport the show on Patreon

https://www.history.com/this-day-in-history/rachel-carson-silent-spring-publishedSupport the show on Patreon

https://www.history.com/this-day-in-history/drake-circumnavigates-the-globeSupport the show on Patreon

https://www.history.com/this-day-in-history/bill-of-rights-passes-congressSupport the show on Patreon

https://www.history.com/this-day-in-history/national-museum-of-african-american-history-opensSupport the show on Patreon