2 facts about each civilization
The Mayans farming method was slash and burn that is were they cut large amounts of grass and burned them. They also made a few things one of them was that they were the first one to use math and there math table was based on 20 they were also the first civilization to use zero.
The Aztecs are one of the most commonly known civilizations. There civilization was made on a lake so farming was hard until one of them came up with an idea to put large amounts of mud on the lake to make artificial cropland but these croplands could actually produce several more crops a year than normal crops. They also invented many things like codices, codices are books made out of leather they also made a calendar just for there religion.