The Mayans lived in Modern day Guatemala.from 6th century B.C.E.-800 C.E.
One achievement is getting and using the rubber. If they didn't then we might not know about the vulcanization.
Math was very important it helped with astronomy which then helped with the calendar which then helped with crops.Also, they were more advanced than Europe!
Ending of th Mayans
I am hungry!!
They could predict when the lunar eclipse was and by the astronomy, they could also tell when to check there clocks.
Famine-with the technique they used (slash and burn) it can only be used once or twice before the land has no nutrients. Warfare-being ware like people they could have lost a war and become slaves. Disease-being close to a jungle a monkey could have come in and sneezed on some one giving them yellow fever. Environment-in a cave it shows that it didn't rain for a long time the same time the Mayans disappeared.
In times of famine and all food storage is gone and can't be replenished then social chaos happens, when this happens a break down of the government happens and so they will then leave.