Yes
calendars, jars, pots
to help them tell which day it was throughout the year
The Olmecs used 3 calendars.
Ancient Hindus generally made use of lunar calendars and solar calendars.
CHANGE In temperature climate time
The ancient Mayans didn't use alphabetic writing. Mayans used hieroglyphics.
I believe the Mayans are no longer a viable society. Hence, they do not use agriculture anymore.
The Mayans, Egyptians, Babylonians, and Chinese all had calendars in the ancient days. The calendar we use to today was first developed by the Romans, under Julius Caesar (the Julian Calendar). That was modified by the Gregorian Calendar (named for Pope Gregory XIII), which we still use today
=the Mayans use their common sense by gathering and hunting deers and monkeys.=
to use them as sacrifice
yes
The Mayan civilization was in southern Mexico and Central America, ranging from Copán in Nicaragua (c 400-800 AD) to Tikal in Guatemala, to Izapa (before 600 BC) and Palenque (c 200-1100 AD) in Mexico. The calendar has features of earlier versions by the Olmecs and Zapotecs.