Jan Zuidhoek
Reconstructing Alexandrian Lunar Cycles
(on the basis of Espenak’s
Six Millennium Catalog of Phases of the
Moon)
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This new book (2023) on early (ante-Nicene)
Alexandrian Paschal reckoning (ISBN 9789090370446) is the successful successor
of the author’s first book (2019) on the same subject (ISBN 9789090324678)
which has been withdrawn from sale by the author. A most recent version of this
new book is available via this very webpage.
This new book is available in Dutch bookshops and at https://www.boekenbestellen.nl.
Like its predecessor, this new book
explains, by following the mainstream of the history of computus
(i.e. Paschal reckoning developed from early third century for determining
Julian or Alexandrian calendar dates of Paschal Sunday) which shortly after AD
250 rose in Alexandria (Egypt) to ultimately in AD 1582 (turning point in
the history of chronology) flow into an astronomically more realistic method
for determining Gregorian calendar dates of Easter, how at the time in
Alexandria calendar dates of Paschal Sunday depended on phases of the moon and
how recently the three lost important Metonic lunar cycles constructed in
Alexandria before the first council of Nicaea in AD 325 (turning point in the
history of Christianity) were reconstructed by the author of this book on the
basis of the Six Millennium Catalog of Phases of the Moon compiled by NASA’s
eclipse expert Fred Espenak. But unlike its
predecessor, it contains the implications of Daniel Mc Carthy’s recent
discovery that Anatolius must have sighted the new crescent moon on the evening
of 21 March 269.
The
author of this book is also the author of the five webpages Book and Author, Table of Contents, Summary, Six Alexandrian Metonic Lunar Cycles,
and Concise Curriculum Vitae of the Author
which were quite recently added to this website as well as of the two
previously created webpages Christian Era and Universal Time
and Dionysius Exiguus’ Paschal Table.
(updated 7-6‑2025)