First Modern Planetarium Opened - Oct. 21, 1923
This Day in History Class - A podcast by iHeartPodcasts and HowStuffWorks
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The first modern planetarium opened in Munich on this day in 1923.
This Day in History Class - A podcast by iHeartPodcasts and HowStuffWorks
The first modern planetarium opened in Munich on this day in 1923.