Mata Hari Executed / Gregorian Calendar introduced - October 15

This Day in History Class - A podcast by iHeartPodcasts and HowStuffWorks

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Mata Hari was executed for espionage on this day in 1917. / On this day in 1582, Pope Gregory XIII introduced the Gregorian calendar, which was created as a way to reform the Julian calendar. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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