How is the aztects the incas and the mayans alike but unique

They are all mexican tribes with different view points of life and have different ceremonies for many acomplishmebts and decomplishments. they also reside in different parts of Mexico. Actually, the Mayans created the mayan calander all the way till the year 2012 ( when most people thought we would die) and that's what our actual calander is based on. they used the solar and lunar cycles to create it.