MORLBT] INTKODUCTION TO STUDY OF MAYA HIEROGLYPHS 165 



Deducting from this number all the Calendar Rounds possible, 75 

 (see Table XYI), it may be reduced to 5,700 without affecting its 

 value in the present connection, 



Applymg rules 1 and 2 (pp. 139 and 140, respectively) to this num- 

 ber, the day- reached will be found to be 10 Ahau; and by applying 

 rule 3 (p. 141), the position of this day in the year mil be foimd to be 

 8 Zac. Therefore, by calculation we have determined that the ter- 

 minal date reached by this Initial Series is 10 Ahau 8 Zac. It remams 

 to find this date in the text. The regular position for the day in 

 Initial-series terminal dates is immediately following the last period 

 glyph, which, as we have seen above, was in A4b. Therefore the day 

 glyph should be B4a. An inspection of this latter glyph will show 

 that it records the day 10 Ahau, both the day sign and the coefficient 

 being unusually clear, and practically immistakable. Compare B4a 

 with figure 16, e'~g' , the sign for the day name Ahau. Consequently 

 the day recorded agrees with the day determined by calculation. The 

 month glyph in this text, as mentioned on page 157, footnote 1, occurs 

 out of its regular position, following immediately the day of the 

 terminal date. 



As mentioned on page 153, when the month glyph in Initial-series 

 terminal dates is not to be found in its usual position, it will be found 

 in the regular position for the month glyphs in all other kinds of 

 dates in the inscriptions, namely, immediately following the day glyph 

 to which it belongs. In the present text we foimd that the day, 10 

 Ahau, was recorded in B4a; hence, since the month glyph was not 

 recorded in its regular position, it must be in B4b, immediately fol- 

 lowing the day glyph. By comparing the glyph in B4b with the 

 month signs in figure 19, it will be foimd exactly like the month sign 

 for Zac {s-t), and we may therefore conclude that this is our month 

 glyph and that it is Zac. The coefficient of B4b is quite clearly 8 and 

 the month part therefore reads, 8 Zac. Combining this with the day 

 recorded in B4a, we have the date 10 Ahau 8 Zac, which corresponds 

 with the terminal date determined by calculation. The whole text 

 therefore reads 9.18.10.0.0 10 Ahau 8 Zac. 



It will be noted that this date 9.18.10.0.0 10 Ahau 8 Zac is just 

 5.0.0 (5 tuns) later than the date recorded by the Initial Series on 

 Zoomorph P at Quirigua (see pi. 6, J.). As explained in Chapter II 

 (pp. 33-34), the interval between succeeding monuments at Qui- 

 rigua is in every case 1,800 days, or 5 tuns. Therefore, it would seem 

 probable that at Quirigua at least this period was the unit used for 

 marking the lapse of time. As each 5-tun period was completed, its 

 close was marked by the erection of a monimient, on which was 

 recorded its ending date. Thus the writer believes Zoomorph P 

 marked the close of the 5-tun period ending 9.18.5.0.0 4 Ahau 13 Ceh, 

 and Stela I, the 5-tun period next following, that ending 9.18.10.0.0 



