sundials that told time using

the positions of the sun.

 BC and is still in use in a few Mayan communities today.

The Mayan calendar moves in cycles with the last cycle

 ending in December 2012.

The reason they worshiped it was a story where the God's tried to make human's and Maize helped make them.

of craftsmen, traders, and warriors. At the bottom, as usually in ancient time, were the farmers and slaves.

The Maya did not use their own people as slaves. Slaves were captured from other tribes.

number system was a base 20 system. they used the numerical system primarily 

for calender and astronomical work ,not to count people or objects

number system was a base 20 system. they used the numerical system

primarily for calender and astronomical work ,not to count people or objects

The names are mainly taken from the Books of Chilam Balam, Lacandon ethnography, the Madrid Codex, the work

of Diego de Landa, and the Popol Vuh. Depending on the source, most names are either Yucatec or K'iche'. 

The Classic Period names (belonging to a language related to modern Ch'ol and Ch'orti') are only rarely known with certainty

the Tzolkin (divine calendar), and the Haab (civil calendar). Of these, only the 

Haab has a direct relationship to the length of the year.

and other foods'.

from the sky 

 seeds of the fruit and roast them to make hot chocolate. The ancient Maya

 didn’t make candy bars, nor did they add sugar and milk to the cacao. Instead

 they took their chocolate as a ceremonial elixir and a savory mood enhancer.

For the Maya, cacao was a sacred gift of the gods, and cacao beans were used

 as currency. Ek Chuah, the Maya god of merchants and trade, was also the patron

 of the cacao crop. When the Spanish invaded Maya lands in the 1500s, they adopted

 the beverage, adding sugar and milk to make it sweet and creamy.

To the Maya of Mesoamerica, this ancient  science reflected order in the universe and the gods' place in it.