The correct answer is D) an accurate calendar.
The Maya civilization developed an accurate calendar.
The Mayan calendar is one of the most respect symbols for Mexicans as part of its culture and heritage, and a precise archeological symbol that helped the Mayas to understand the time, its cycles, and seasons.
The Maya calendar became famous in the 2000s with those predictions about the end of the world.
The Maya calendar is a combination of three calendars called Tzolkin (a sacred calendar of 260 days), the Haab (the Solar calendar of 365 days), and the Long calendar. The Haab and Tzolkin come back in sync every 52 years completing what the Mayas called a "calendar cycle."
