CORRELATION OF MAYA AND CHRISTIAN CHRONOLOGY. 467 
The correlation here suggested therefore may be divided into two steps: 
(1) The correct alinement of the u kahlay katunob with Christian chronology. 
(2) The correct alinement of the Initial Series with the u kahlay katunob. 
When these two points of contact have been established, the dates of the 
Old Empire, the Initial Series, can be reduced to terms of our own chronology, 
through the medium of the common equivalents afforded by the u kahlay katunob) 
This, in brief, describes the method of procedure which the writer and every- 
one else has followed, and the different results reached by the several investigators 
of the problem (reviewed later), are due to the several interpretations placed upon 
the same evidence, chiefly the u kahlay katunob in the Books of Chilan Balam pub- 
lished by Brinton in 1882, under title of The Maya Chronicles? 
Unfortunately, as will appear later, these native records are more or less con- 
tradictory, especially in regard to the exact Maya equivalents, for specific days in 
the Christian Era, for which reason it appears hazardous to push this evidence to the 
point of deriving from it a correlation for which accuracy is claimed to the very day. 
This is attempting to read the vernier-scale of our instrument more accurately than 
the instrument was built to register. On the other hand, if exact correlation 1s 
not demanded, and if certain obviously contradictory dates in the Christian calen- 
dar are eliminated, and finally if we will accept approximate correlation, 7. ¢., a 
larger point of contact, say anywhere within a given year of the Christian Era, the 
writer believes satisfactory, and within these larger limits accurate, results can be 
obtained. 
SOURCES FOR THE CORRELATION OF THE U KAHLAY KATUNOB AND 
CHRISTIAN CHRONOLOGY. 
Taking up the first step mentioned above, 7. ¢., the alinement of the wu kahlay 
katunob with Christian chronology, let us first examine the original sources upon 
which this part of our correlation must be based. ‘The writer finds twelve authori- 
ties of the sixteenth, seventeenth, and eighteenth centuries, nine native and three 
Spanish, which may be utilized in this connection as follows, arranged in chrono- 
logical order: 
I. The Chronicle of Chacxulubchen, written about 1562 by Nakuk Pech, the native 
Maya chief of that town. 
II. Relation of the Things of Yucatan, written not later than 1566 and not earlier than 
the close of 1561 by Diego de Landa, fourth Bishop of Yucatan. 
Ill. The u kahlay katunob from the Book of Chilan Balam of Mani, copied not later 
than 1595 by some native Maya. 
IV. The u kahlay katunob from the Book of Chilan Balam of Tizimin, copied about 
the close of the sixteenth century, also by a native Maya. 
V. Page 66 of the Chronicle of Oxkutzcab, containing entries for 1532-1545, copied 
from “an ancient book,” on May 29, 1685, by Don Juan Xiu.’ (See figure 72.) 
VI. History of Yucatan, written in 1656 by Diego de Cogolludo, twelfth Bishop of 
Yucatan, and published in 1688. 
VII. An ancient Indian painting, bearing the date 1536 figured in the preceding. (See 
figure 73.) 
MLee ee Were Conquest of the Province of the Itza, written after 1697 and published 
in 1701 by Juan de Villagutierre Sotomayor. 

1The correlation of Maya and Christian chronology suggested in this Appendix was first proposed by the 
writer in 1909 at the Baltimore meeting of the Archzological Institute of America (Morley, 19104, p. 193), when 
it was announced that Stela 9 at Copan (9.6.10.0.0) dated from 284 to 304 A. D., depending upon which tun 
of Katun 13 Ahau 8 Kankin coincided with the year 1536. Subsequent investigations, described in this Appendix, 
have convinced the writer that it was the closing tun of this katun which coincided with the year 1536, and that 
Stela 9 at Copan therefore dates from 304 A. D. 
2See Brinton, 1882. 
3This is page 66 in the Gates pagination, or page 80 in the Breton pagination of this manuscript. With afew 
minor changes the Gates pagination appears to be the better of the two, 
