 Marking Time: The Epic Quest to Invent the Perfect Calendar
ISBN: 978-0-471-29827-4
Hardcover
432 pages
October 1999
US $50.00
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George Washington's Birthday.
The Country Parson's Formula.
The Cycles of the Sky.
Stonehenge and Sothis (Third Millennium B.C.).
Meton (432 B.C.), Callippus (330 B.C.), and Hipparchus (130 B.C.).
Julius Caesar (46 B.C.).
Constantine the Great (A.D. 321).
Dionysius Exiguus (A.D. 525).
The Synod of Whitby (A.D. 664).
The Venerable Bede (A.D. 725).
Lady Day.
Retrospective Dating.
Pope Gregory XIII (A.D. 1582).
The Perfect Christian Calendar and God's Longitude.
Archbishop Ussher and the Age of the Earth (A.D. 1650).
Lord Chesterfield's Act (A.D. 1751).
Poor Richard's Almanack.
President Arthur Requests (A.D. 1884).
Marching to the Same Drummer?
Calendar Reform.
The Comet of Bethlehem.
How Many Days in a Dinosaur Year?
Should 2100 Be a Double Leap Year?
Epilogue.
Appendix A: How Long Is a Day?
Appendix B: How Long Is a Year?
Appendix C: How Long Is a Second?
Appendix D: How Long Is a Month?
Selected Bibliography.
Index.
