Note IV-64 — Chapter IV · THE TOLTEC PERIOD.
Reading edition
Ixtlilxochitl, in Kingsborough's Mex. Antiq., vol. ix., pp. 207-8, 329-30; Veytia, Hist. Ant. Mej., tom. i., p. 280, et seq. Dates, 1097, et seq. Veytia. 984, et seq. Ixtlilxochitl. There is no agreement about the duration of the plagues. They seem, however, to have been continuous for at least five years.