“This is as far as the Chronological Calendar can guide us. We have next to find the position of this date in the Annual Calendar. The date can only occur once in the fifty-two years which constitute a calendar round, and an examination of the tables shows that it falls in the first year of the annual calendar (see [page 266], where it is marked with a square).

“The next glyph in the inscription, A 3, is the Chuen sign with the sign which signifies a ‘full count’ of Chuens, in front of it. As a full count of Chuens is 18 and equals 1 Ahau, and as the number of Ahaus has already been recorded, the glyph A 3 means that no odd Chuens are to be added to the date already expressed.

“The glyph B 3 is the sign for a day (of twenty-four hours) preceded by the numeral 16.

“Turning to the first year of the annual calendar, we now add these 16 days to 2 Ahau 18 Xul, the date already arrived at, and it will be found to bring us to 5 Cib 14 Yaxkin (marked with a dashed border).

“That this reckoning is correct is shown by the inscription itself, where the result is expressed: A 4 being 5 Cib, and B 7 14 Yaxkin. The six glyphs in the inscription intermediate between the sign of the day Cib, and the sign of the month Yaxkin, have not yet been thoroughly deciphered, but there is reason to suppose that they contain a parallel reckoning differently expressed.

“The next three glyphs are undeciphered; then comes another reckoning:—

“C 1 is the Chuen sign with the numeral 10 (two bars =10) above it, and a ‘full count’ sign at the side. Whether the 10 applies to the Chuens or days can only be determined by experiment, and such experiment in this case shows that the reckoning intended to be expressed is 10 Chuens and a ‘full count’ of days, that is for practical purposes 10 Chuens only, for as in the last reckoning when the full count of Chuens was expressed in the Ahaus, so here the full count of days is expressed in the Chuens.

“The next glyph D 1 is an Ahau sign, preceded by the numeral 12.

“This gives us—

12 Ahaus (12 × 360) =4320 days.
10 Chuens (10 × 20) = 200 ”
—————
4520 days.
4380 ”= 12 years.
—————
140 days.