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1. Greek Tetradrachm: Symbol of Athenian Power.
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2. Roman Denarius: Currency of the Mighty Empire.
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3. Byzantine Solidus: The Gold Standard of Medieval Times.
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4. Spanish Escudo: Financing the Age of Exploration.
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5. French Franc: Witness to the French Revolution.
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6. British Sovereign: The Coin of an Empire.
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7. American Gold Eagle: The Birth of a Nation.
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8. German Mark: The Catalyst Behind Two World Wars.
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9. Bitcoin: Transforming the Digital Frontier.
Note: Each page contains exactly 35 words or fewer to provide concise information on the crucial coins that played pivotal roles in major historical events.