[1] The date of Stela D given by Goodman as 54. 9. 5. 5. 0. 0. is almost surely 54. 9. 15. 5. 0. 0.

[2] The dates 54. 13. 0. 0. 0. 0. and 54. 9. 1. 0. 0. 0. may well be traditional and not historical, and refer to a period lying far in the past.

[3] This date on Lintel 22 is very clear, but as it is the only one which I have seen, I omit it in the following discussion. If historical, it is earlier than the earliest date of Quirigua except that of the normal date 54. 13. 0. 0. 0. 0., 4 Ahau 8 Cumhu.

[4] The dates of the Temple of the Cross, Temple of the Sun, and Temple of the Foliated Cross are almost surely traditional. The date on the Palace Steps, given by Goodman as 55. 3. 18. 12. 15. 12., should undoubtedly be 54. 9. 8. 9. 13. 0.

[5] The Maya Chronicles, D. G. Brinton, Phil'a, 1882, p. 87.

[6] If, however, we accept the date of 54. 9. 1. 0. 0. 0. in Quirigua as historical, as I was inclined to think when I wrote "Memoranda on the Maya Calendars used in the Books of Chilan Balam," the foundation of Quirigua would be anterior to all the dates which I have used in the above calculations.