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Are These Secrets Lost Forever to History? *Marathon* | History's Greatest Mysteries

Are These Secrets Lost Forever to History? *Marathon* | History's Greatest Mysteries

These are the mysteries that continue to puzzle historians, investigators, and the world, in this marathon from History's Greatest Mysteries. Watch all new episodes of History's Greatest Mysteries on Mondays at 9/8c, and stay up to date on all of your favorite The HISTORY Channel shows at history.com/schedule. #HistorysGreatestMysteries ...

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