/u/NeoDiamond's posts in /r/AskHistorians
Have radioactive materials (radium, etc.) been found by societies prior to Marie and Pierre Curie? If so, what were they perceived as? Were any negative effects (hair and nail loss, for example) reported as a result of interacting with these strange materials?
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Why was support for the Crusades strong throughout the Middle Ages, despite the numerous failures in the Holy Land after the first recapture of Jerusalem by Salah al-Din?
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