Az: Aztlan date

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

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

Were the Aztecs called Aztecs or were they called Mexicas when
they left Aztlan?

Does the name Aztecs referred to all of the tribes under the
domination of the Mexicas during the 1500s?

Victor Gonzalez