Definition of "Maya" :

noun: a family of American Indian languages spoken by Mayas

noun: an ethnic minority speaking Mayan languages and living in Yucatan and adjacent areas

noun: a member of an American Indian people of Yucatan and Belize and Guatemala who had a culture (which reached its peak between AD 300 and 900) characterized by outstanding architecture and pottery and astronomy

"Mayans had a system of writing and an accurate calendar."