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.
It would generally be "growth" that focuses on equal opportunities for education, since it is in the best interest of the country in question to have as many educated citizens as possible.