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With all the different types of currency in the world, it's nigh impossible to count it all -- but there are estimates. Learn more in this episode of BrainStuff, based on this article: https://money.howstuffworks.com/how-much-money-is-in-the-world.htm Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

https://www.listennotes.com/e/d24b52bf9ad4416aa0c60f2ad1615c05/