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The Calendar : The 5000 Year Struggle to Align the Clock and the Heavens and What Happened to the Missing Ten Days by David Ewing Duncan, David Ewing Duncan
The Calendar : The 5000 Year Struggle to Align the Clock and the Heavens and What Happened to the Missing Ten Days
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David Ewing Duncan, David Ewing Duncan

The Calendar : The 5000 Year Struggle to Align the Clock and the Heavens and What Happened to the Missing Ten Days

David Ewing Duncan, David Ewing Duncan

384 pages • first pub 1998 (editions)

nonfiction history science challenging informative slow-paced
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