The Olmecs used two calendars together. One calendar was a secular one that had 365 days.
The oldest form of the calendar— the solar round —was likely invented by the Olmec, epi-Olmec, or Izapans about 900-700 BCE, when agricultural was first established. The sacred round may have been developed as a subdivision of the 365-year one, as a tool specifically designed to track important dates for farming.
Mayan calendar, dating system of the ancient Mayan civilization and the basis for all other calendars used by Mesoamerican civilizations. The calendar was based on a ritual cycle of 260 named days and a year of 365 days.
OLMEC (OHL-meck) The oldest civilization in Mesoamerica; the Olmecs influenced all of the civilizations that followed them. They developed a calendar and hieroglyphic writing. The first ritual ball game was invented by the Olmecs.
The Olmecs flourished during Mesoamerica’s formative period, dating roughly from as early as 1500 BCE to about 400 BCE. They were the first Mesoamerican civilization, and laid many of the foundations for the civilizations that followed.
Aztec Calendar The Aztecs used two calendars. One calendar was used for tracking religious ceremonies and festivals. This calendar was called the tonalpohualli which means “day count”. It was sacred to the Aztecs and was very important as it divided time equally among the various gods and kept the universe in balance.
Egyptian calendar, dating system established several thousand years before the common era, the first calendar known to use a year of 365 days, approximately equal to the solar year. In addition to this civil calendar, the ancient Egyptians simultaneously maintained a second calendar based upon the phases of the moon.
Using a modified vigesimal tally, the Long Count calendar identifies a day by counting the number of days passed since a mythical creation date that corresponds to August 11, 3114 BCE in the Proleptic Gregorian calendar. The Long Count calendar was widely used on monuments.
Overview: The Olmec lived along the Gulf Coast of Mexico in the modern-day Mexican states of Tabasco and Veracruz. The Olmec society lasted from about 1600 BCE to around 350 BCE, when environmental factors made their villages unlivable.
The subsequent Epi-Olmec culture (300 BCE to 250 CE), was a successor culture to the Olmec and featured a full-fledged writing system, the Isthmian (or Epi-Olmec) script. The existence of a writing system in Middle and Late Olmec periods has been a matter of long-standing debate.
Who Made the First Calendar? Historians believe timekeeping goes as far back as the Neolithic period, but actual calendars weren’t around until the Bronze Age in 3100 BC. The Sumerians in Mesopotamia made the very first calendar, which divided a year into 12 lunar months, each consisting of 29 or 30 days.
Calendar Wheel The Aztec calendar consists of 260 days (13 months, each containing 20 days), which determined the life of each Mexica (Aztec). In Aztec society, priests consulted the calendar to determine auspicious days for weddings and other important events.
Many people have a misconception that life for ancient Maya peasants was rough and poor, but this new evidence shows some Maya lived a very comfortable and prosperous “middle class” existence. Maya civilization thrived thousands of years ago in present-day Central America.
The Olmec were American Indians, not Negroes (as Melgar had thought) or Nordic supermen.”
To quickly sum up, the Maya were first but learned a lot from the Olmecs, who started 1,200 years later.
Linguistic evidence has contributed to the ethnic identity of the archaeological Olmecs: they spoke a Mixe-Zoquean language. The Olmecs produced the earliest complex civilization in Mesoamerica (c. 1200–400 bce), and it was located mainly in the same area where Mixe-Zoquean languages are found.