Final answer:
The Mayans invented a numerical system that included a symbol for zero, enabling complex mathematical and astronomical calculations and the creation of an advanced calendar.
Step-by-step explanation:
The Mayans made significant contributions to mathematics, particularly with their numerical system that included a symbol for the concept of zero. This was a groundbreaking addition to the world of mathematics, enabling them to perform complex arithmetic and geometry which surpassed that of other early civilizations like the Egyptians.
The Mayans' knowledge of astronomy, facilitated by their mathematical understanding, allowed them to accurately predict solar eclipses. Moreover, they developed a sophisticated and intricate calendar system that was based on their unique conception of cyclical time.
All of this was made possible through their advanced mathematical system, which is considered by some scholars to contain the earliest recorded use of zero.