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When Mansa Musa arrived in Cairo, Egypt ... the most powerful Arab city on Earth at the time ... he did something that no emperor in human history has ever done before or since. � He gave his gold away. � Not a little. Not strategically. He gave gold to everyone. To the poor on the streets. To merchants. To government officials. To strangers. He built mosques. He paid debts of people he had never met. � And the result? � He broke Egypt's economy. � The gold market of Cairo ... which had be