How did the mayans discoveries impact their time ?

The Ancient Mayans was a diverse group of indigenous people that lived in parts of Mexico, Guatemala, Beliz, Honduras and El Salvador. They are renown for their complex civilizations in the western hemisphere between 300-900 A.D (Classic Period). They had scientific inventions in astronomy, engineering, agriculture and communications.
 The figured how;
- How to grow beans, corn, cassava in even inhospitable places. 
-How to build cities and temples without the use of modern machinery i.e., metal and wheel.
-How to communicate with the worlds first languages.
-How to calculate time by use if two complex calenders