USA HISTORY

Detailed explanation-1: -They also used astrological cycles to aid in planting and harvesting and developed two calendars that are as precise as those we use today. The first, known as the Calendar Round, was based on two overlapping annual cycles: a 260-day sacred year and a 365-day secular year.

Detailed explanation-2: -Of all the ancient calendar systems, the Maya and other Mesoamerican systems are the most complex and intricate. 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.

Detailed explanation-3: -The calendar dates back to the 5th century. While the Mayan civilization contributed to its further development, the civilization didn’t actually create it. This calendar system was used in pre-Columbian Central America by cultures that predated the Maya Civilization.

Detailed explanation-4: -They developed a written language of hieroglyphs and invented the mathematical concept of zero. With their expertise in astronomy and mathematics, the Maya developed a complex and accurate calendar system.

Detailed explanation-5: -A Maya month or uinal consists of 20 solar days or kins. The 260-day sacred year or tzolkin consists of 13 months of 20 days, while the 365-day vague year or haab, consists of 18 months of 20 days, called the tun, followed by an intercalary “month” of five days called the uayeb.