Download or read book The Mayans Developed a Calendar, Mathematics and Astronomy | Mayan History Books Grade 4 | Children's Ancient History written by Baby Professor and published by Speedy Publishing LLC. This book was released on 2020-12-31 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: Did you know that before Aristotle and Galileo there were the Mayans? The Mayans were an ancient civilization that once lived in Mexico. They were intelligent people who developed their own calendar and studied math as well as astronomy. Develop an appreciation for this ancient civilization by reading all about them. Go ahead and grab a copy today!