Marking Time: The Epic Quest to Invent the Perfect Calendar"If you lie awake worrying about the overnight transition from December 31, 1 b.c., to January 1, a.d. 1 (there is no year zero), then you will enjoy Duncan Steel's Marking Time."--American Scientist "No book could serve as a better guide to the cumulative invention that defines the imaginary threshold to the new millennium."--Booklist A Fascinating March through History and the Evolution of the Modern-Day Calendar . . . In this vivid, fast-moving narrative, you'll discover the surprising story of how our modern calendar came about and how it has changed dramatically through the years. Acclaimed author Duncan Steel explores each major step in creating the current calendar along with the 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 b.c. to the roles played by Julius Caesar, William the Conqueror, and Isaac Newton to present-day proposals to reform our calendar, this entertaining read also presents "timely" tidbits that will take you across the full span of recorded history. Find out how and why comets have been used as clocks, why there is no year zero between 1 b.c. and a.d. 1, and why for centuries Britain and its colonies rang in the New Year on March 25th. Marking Time will leave you with a sense of awe at the haphazard nature of our calendar's development. Once you've read this eye-opening book, you'll never look at the calendar the same way again. |
Contents
George Washingtons Birthday | 1 |
The Country Parsons Formula | 9 |
The Cycles of the Sky | 21 |
Copyright | |
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actually anno anno Domini astronomical average Bede Britain British calculated calendar reform called celebrated celestial century B.C. chapter Christian Christmas civil clocks comet computus count Crucifixion date of Easter dating system daylight saving decades defined Dionysius Dionysius Exiguus earlier Earth east Easter computus ecclesiastical eclipse Egyptians endar England English epacts example fact four Franklin full moon golden number Greenwich Gregorian calendar Gregorian reform Inter Gravissimas intercalary January Jesus Jewish Julian calendar Julius Caesar later leap leap-year cycle length longitude lunar phases March 25 matter mean meridian Metonic cycle millennia month move Nisan 14 number of days occurred orbit Passover perihelion period planet pope precisely reason Roman Rome seems seven-day solar spin axis star summer solstice Sunday synodic synodic month things thirty-three-year tion tropical United various vernal equinox week winter solstice