James Jay invents an invisible ink that aids George Washington - November 29th, 1775

from This Day in History Class · host iHeartPodcasts and HowStuffWorks

On this day in 1775, physician and amateur chemist James Jay invented a new kind of invisible ink, which was later put to use in the American War of Independence. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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On this day in 1775, physician and amateur chemist James Jay invented a new kind of invisible ink, which was later put to use in the American War of Independence.

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James Jay invents an invisible ink that aids George Washington - November 29th, 1775

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