THE D TABLET
 

As I can remember it March 17 (77) was named Liberalia by the Romans. And according to my preliminary guess Terminalia (February 23, 54) should be at the last glyph in line Da7:

Side a:

Da1

Da2

Da3

Da4

 

Da5

Da6

Da7

Da8

300

320

336

350

1

22

39

55

Oct 27

11-16

12-2

12-16

Jan 1

1-22

2-8

2-24

20

16

15

15

21

17

16

6

20

36

51

66

21

38

54

60

51

66

54

60

120 + 6 = 126

... The leap day was introduced as part of the Julian reform. The day following the Terminalia (February 23) was doubled, forming the 'bis sextum - literally 'double sixth', since February 24 was 'the sixth day before the Kalends of March' using Roman inclusive counting (March 1 was the 'first day'). Although exceptions exist, the first day of the bis sextum (February 24) was usually regarded as the intercalated or 'bissextile' day since the third century. February 29 came to be regarded as the leap day when the Roman system of numbering days was replaced by sequential numbering in the late Middle Ages ...

Side b:

Db1

Db2

Db3

 

Db4

Db5

Db6

61

77

90

105

120

134

March 1

3-17

3-30

4-14

4-29

5-13

16

13

15

15

14

13

16

29

44

15

29

42

29

44

29

42

44 + 42 = 86

134 + 13 = 147 = 21 weeks

350 + 15 = 365 = 512 - 147

512 = 8 * 64

However, before March 5 we should probably count right ascension nights instead of dates in the Sun calendar, and from there deduce the Sun dates via the nakshatra method.

Da8-1 (66 + 55 = 121 11 * 11)

Da8-2 (122 = 2 * 61)

Da8-3 (123)

Febr 24 (365 + 31 + 24 = 420)

25

26

ζ Aquarii, δ Gruis (*340.4)

PROCYON

υ Oct. (*341.0) σ Gruis (*342.4)

Da8-4

Da8-5 (5 * 5 * 5 = 125)

Da8-6 (18 weeks)

*343 (→ 7 * 7 * 7) ρ Gruis (*344.0) λ Pegasi (*345.0)

Febr 27

28 (424)

29 (→ 229)

February 29 should occur only in leap years, which suggests March 1 (365 + 31 + 28 + 1 = 425, *345 → The Pythagorean Triangle) at Db1-1 has been defined for an ordinary year:

4

  12

17

*3

*3 *9

Db1-1 (126 + 1)

Db1-4 (126 + 4)

Db1-5 (66 + 65)

Db1-8 (134)

Db2-1 (143)

March 1 (*345)

March 4 (428, *348) March 5 (265 - 200)

March 8 (68, 432)

March 17 (143 - 66)

λ Pegasi (*345.0) FOMALHAUT Fum-al-Samakah φ Aquarii (*352.0) (*361, 441 = 7 * 63)

γ¹ Oct. (*361.4)

4 + 12 = 16

However, in this part of the time-space structure things are complicated because the date for Bissextum (the day following Terminalia in a leap year) might have been in the mind of the creator of the G text:

... The leap day was introduced as part of the Julian reform. The day following the Terminalia (February 23) was doubled, forming the 'bis sextum - literally 'double sixth', since February 24 was 'the sixth day before the Kalends of March' using Roman inclusive counting (March 1 was the 'first day'). Although exceptions exist, the first day of the bis sextum (February 24) was usually regarded as the intercalated or 'bissextile' day since the third century. February 29 came to be regarded as the leap day when the Roman system of numbering days was replaced by sequential numbering in the late Middle Ages ...

Gb2-21 Gb2-22 Gb2-23 Gb2-24 (50) Gb2-25 (280) Gb2-26
δ Tucanae (340.1), ρ Cephei (340.2),  ν Gruis (340.3), ζ Aquarii, δ Gruis (340.4), 5/1100 Lac. (340.7), σ Aquarii, 6/650 Lac. (340.9)

PROCYON (α Canis Minoris)

υ Oct. (341.0), α/91 Lac. (341.1), HOMAN (Hero) = ζ Pegasi, β Piscis Austrini (341.2), ν Tucanae (341.5), υ Aquarii (341.9) η Aquarii (342.1), σ Gruis (342.4), SITULA (Water Jar) = κ Aquarii (342.7) ε Piscis Austrini (343.5), ο Pegasi, β Gruis (343.8) ρ Gruis (344.0), MATAR (Rain) = η Pegasi (344.2), η Gruis (344.6), β Oct. (344.7) λ Pegasi (345.0), ξ Pegasi (345.1), ε Gruis (345.3), τ Aquarii (345.7), ξ Oct. (345.8), μ Pegasi (345.9)
Febr 24 25 (*341) 26 27 (58) 28 (424) March 1 (*345)

This problem could evidently have been solved by the creator of the D text because he seems to have put the extra (leap) day in the interval between the last glyph hight up on side a and the first glyph in the bottom line on side b of his tablet.

... Horapollo, the grammarian of Alexandria, about A.D. 400, tells us that the crane was the symbol of a star-observer in Egypt ...