Description: In a light, fast-moving narrative, Marking Time tells the surprising story of how the modern day calendar came about and how the calendar has changed dramatically through the years, with many different systems for defining the number of days in a week, the length of a month, and the number of days in a year. From the definition of the lunar month by Meton of Athens in 432 BC to the roles played by Julius Caesar, William the Conqueror, and Isaac Newton to present-day proposals to reform our calendar, this fascinating read explores each major step in creating the current calendar. Readers will find out how and why comets have been used as clocks, why there is no year zero between IBC and IAD, and why for centuries Britain and the colonies rang in the New Year on March 25. After reading this eye-opening, enthralling book, no one will ever look at the calendar the same way again.

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