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QWho invented the perpetual calendar machine?

ID: #7472 Computer Generations 230 views
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Computer GenerationsTopic
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  • A Pierre Jaquet-Droz ✔ ✖
  • B Abi Bakr of Isfahan ✔ ✖
  • C Giovanni Plana ✔ ✖
  • D Sir William Thomson ✔ ✖
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Explanation: He devised a Perpetual Calendar machine, which could predict the perpetual calendar for every year from AD 0 to AD 4000.

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