'Caesar's Calendar: Ancient Time and the Beginnings of History'

We probably won't think of it. But whether it's July, Juillet, Julio, or myriad other versions, this month is for Julius Caesar in much of the globe, for the general and statesman who gave us 365 days and leap years for tinkering.

"The Romans created time machines that we still inhabit," writes Denis Feeney, even with the adjustments sanctioned by Pope Gregory XIII in 1582. Still, while Caesar's Calendar: Ancient Time and the Beginnings of History (University of California Press), will