Calendars in Antiquity. Empires, States, and Societies

Table 2.4.Intercalations under Darius I, Xerxes, and Artaxerxes I

YearBCE Intercalation
(month
number)

Interval from

previous

intercalation

(number of

years)

Possible year

number in a

Saros Canon

cycle

Possible year

number in

a loose

19-year cycle

Possible

year

number in

an 8-year

cycle

527/6 VI 2 3 –– 6
525/4 XII 2 2½ 11 11 8
522/1a XII 2 314143
519/18 VI 2 2½ 17 17 6
517/16 XII 2 2½ 19 19 8
514/13 XII 2 3 3 or 14b 33
511/10 VI 2 2½^1766
509/8c XII 2 2½ 19 8 8
506/5 XII 2 3 3 11 3
503/2 VI 2 2½ 14 6
500/499 XII 2 3½ 17
498/7 XII 2 21119
495/4 XII 2 31433
492/1d VI 2 2½ 17 6 6
490/89 XII 2 2½ 19 8 8
487/6 XII 2 3 3 or 14b 11 or 14 3
unattestede
482/1f XII 2 8or19g 19 8
478/7 VI 2 3½
476/5 XII 2 2½ 6 6
unattestedh
471/0 XII 2 11 11
468/7 XII 2 314143
465/4 VI 2 2½ 17 17 6
463/2 XII 2 2½ 19 19 8
460/59 XII 2 333
unattested
455/4 XII 2 88
452/1 XII 2 31111
449/8 XII 2 31414
446/5 XII 2 317
444/3 XII 2 21919
441/0 XII 2 333
unattested
436/5 XII 2 88

(continued)

108 Calendars in Antiquity