Helium is discovered during a solar eclipse - August 18th, 1868
August 18, 20239m 10s
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Show Notes
On this day in 1868, French astronomer Pierre Janssen discovered an unknown element while observing a solar eclipse.
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Topics
august 18 historyon this day august 18today in history august 18august 18 this day in historyaugust 18 historical eventshelium discoveredpierre janssen1868this day in history classpodcast