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

Ifound this on google “simply, the working conditions were terrible during the industrial revolution. as factories were being built, businesses were in need of workers. with a long line of people willing to work, employers could set wages as low as they wanted because people were willing to do work as long as they got paid.” i hope this you for what your looking for.