Most historians think that 4 Ahau 8 Cumku (most likely August 11, 3114 bce) was the base date used by the Maya for the start of the “Long Count” and the first “Great Cycle,” a period of 5,125 years that ends on December 21, 2012 ce.
It turns out that the Aztec calculation of an average 365.2420 days per year is actually closer to the real value of 365.2422 days than the old Julian value of 365.2500 days or even our current Gregorian value of 365.2425 days. The Sun Stone was hand-carved in the 52-year period from 1427 to 1479.
At the end of the 13th baktun, the Long Count calendar resets to 0.0. 0.0. 0. The ancient Maya reportedly believed that with each end of the Universal cycle, the Universe itself would “reset” by ending and starting over — not just the calendar — hence the doomsday interpretation.
In the Maya Long Count, the previous world ended after 13 bʼakʼtuns, or roughly 5,125 years. The Long Count’s “zero date” was set at a point in the past marking the end of the third world and the beginning of the current one, which corresponds to 11 August 3114 BC in the proleptic Gregorian calendar.
Mysterious Decline of the Maya From the late eighth through the end of the ninth century, something unknown happened to shake the Maya civilization to its foundations. One by one, the Classic cities in the southern lowlands were abandoned, and by A.D. 900, Maya civilization in that region had collapsed.
Allen Christenson, professor of comparative arts and letters and an expert on Mayan society, explained that although the Maya couldn’t predict the exact day of an eclipse , they could predict eclipse seasons by noting when Venus rose above the horizon just before sunrise.
The face of the Aztec sun god, Tonatiuh , appears at the centre of the stone, surrounded by four square panels honouring previous incarnations of the deity that represent the four previous ages of the world. Circumscribing these are signs that represent the 20 days of the Aztec month.
The Aztec sun stone, also called the calendar stone, is on display at the National Museum of Anthropology in Mexico City . The calendar consists of a 365-day calendar cycle called xiuhpōhualli (year count) and a 260-day ritual cycle called tōnalpōhualli (day count).
Scholars have suggested a number of potential reasons for the downfall of Maya civilization in the southern lowlands, including overpopulation, environmental degradation, warfare, shifting trade routes and extended drought. It’s likely that a complex combination of factors was behind the collapse.
They used 20-day months, and had two calendar years: the 260-day Sacred Round, or tzolkin, and the 365-day Vague Year, or haab. These two calendars coincided every 52 years. The 52-year period of time was called a “bundle” and meant the same to the Maya as our century does to us.
The Mayan calendar is an ancient system of three interlacing calendars : the Long Count, the Tzolkin and the Haab. The Long Count is an astronomical calendar . Each cycle is 2,880,000 days long. The Tzolkin is a 260-day calendar used for religious events, and the Haab is a 365-day solar calendar .
The Maya calendar is a system of calendars used in pre-Columbian Mesoamerica and in many modern communities in the Guatemalan highlands, Veracruz, Oaxaca and Chiapas, Mexico.