Introduction
Mayan civilization existed for more than three thousand years and for 1200 years their civilization dominated the Central American region. The Mayan civilization reached their crest around 900 A.D. as Maya cities were teemed with around 2,000 Mayans living per square mile. Even in the rural Mayan areas, their population used to be between 200-400 people for every square mile. Therefore, it seemed mysterious when the whole civilization disappeared completely soon after their peak. The disappearance of the Mayan civilization has been considered as one of the biggest demographic disasters of human history as a vibrant society went ...