Social classes: King
Priests
Scribes
Merchants & Artisans
Commoners
Slaves
Economic classes: calendar and irrigations (via canals and ditches), craftsmen (copper and bronze workers)
Answer: No.
Explanation: Because of how badly they treat us, they act as if we are rabbits in an experiment, it's morally wrong.
50 years is a long time but not long enough for the preconquest Aztec to forget their way of living before the Spanish came. The compromise lies in how easy it is to get historical information from the Aztec since some of them will have already learned Spanish very well and between how accurate these historical accounts are since little details about the preconquest Aztec society can be forgotten in 50 years.