This webpage is part of www.alexandriancomputus.net, which supports the new book on early Alexandrian Paschal reckoning [Jan Zuidhoek (2023) Reconstructing Alexandrian Lunar Cycles (on the basis of Espenak’s Six Millennium Catalog of Phases of the Moon): Zwolle], and displays the table of contents of this new book, which is available via this website.

 

 

 

 

Table of Contents

 

The table we show here is a reproduction of the table of contents of the book in question.

 

 

Contents

 

 

Introduction

Three (lost) ante-Nicene Alexandrian lunar cycles

(1) Anatolius’ lunar cycle

Reconstructing Anatolius’ lunar cycle

(0) The proto-Alexandrian lunar cycle

Anatolian lunar cycles

Searching for Anatolius’ lunar cycle

Dating the spring equinox

(2) The archetypal Alexandrian lunar cycle

Reconstructing the archetypal Alexandrian lunar cycle

Three (wellknown) post-Nicene Alexandrian lunar cycles

(3) The Festal Index lunar cycle

(4) Theophilus’ lunar cycle

(5) The classical Alexandrian lunar cycle

The ante-Nicene Alexandrian 2-day gap

More evidence

Summary

Epilogue

Bibliography

Index

Appendix I (Dionysius Exiguus’ Paschal table)

Appendix II (Beda Venerabilis’ Easter table)

Appendix III (Christian Era and Universal Time)

 

   

    9

  12

  14

  20

  31

  32

  36

  40

  45

  48

  58

  60

  66

  67

  71

  74

  92

  95

104

106

112

115

130

 

Ultimately Anatolius’ lunar cycle (1) has appeared to be different from the about ten years older protoAlexandrian lunar cycle (0): in fact these two lost 19lunar cycles differ in only 1 out of their 19 different calendar dates. Furthermore, the third of the three (lost) anteNicene Alexandrian lunar cycles, the about fifty years younger archetypal Alexandrian lunar cycle (2), and the more than a century younger three (wellknown) postNicene Alexandrian lunar cycles (3), (4), and (5) are not very different from each other. Observing Table 20 of the book in question we note that between on the one hand (0) and (1) and on the other (2), (3), (4), and (5) there is a (apparently ante-Nicene) gap of on average just over 2 days, referred to as the ante-Nicene Alexandrian 2-day gap.

 

 

 

© Jan Zuidhoek 20232025

(updated 122025)

to homepage

to the top of this page