It's all to do with chinampas. These raised fields built on artificial islands sound almost too good to be true. Often fed by a network of canals and dykes, they apparently afford "extremely high" ...

At the height of their power, the Aztec Empire supported a population of up to 3 million in the Valley of Mexico, and many of their largest cities had populations exceeding 100,000. This was not easy, ...

Without clocks or modern tools, ancient Mexicans watched the sun to maintain a farming calendar that precisely tracked seasons and even adjusted for leap years. Without clocks or modern tools, ancient ...