Az: Aztlan date

[by way of "John F. Schwaller" <schwallr@selway.umt.edu>]

Is there a recent consensus about the date the Aztecs left Aztlan?

Tezozomoc - Cr=F3nica Mexicana says 1069.
The Timetables of History by Grum says 1118.
Tibon - 1111.
Prescott - 1091.

Tom Levine