Mayan astronomers had a remarkably accurate knowledge of the apparent motion of Venus. They knew on what day Venus would appear again in the east after it had disappeared in the west.
Moreover, they knew that every 2920 days (about eight years) Venus repeats its movements in relation to the sun. The Mayan Venus Calendar is called the Tzolkin, Venus was the centerpiece of Mayan cosmology and mythology. She has always been the divine feminine of creation, our connection to the source of consciousness and light.