February 13, 2016 Penn Museum: Geraldine Ann Patrick Encina, Scholar-in-Residence, Union Theological Seminary: "The Long Count in the function of the Haab' and its Venus-Moon Relation: Application in Chichén Itzá"
Morning Workshop "Revisiting the Correlation Problem"
Afternoon Lecture "A comparative analysis of GMT and Patrick (2013) correlations"

 In a 2-hour workshop, Dr. Patrick outlined the structures of the Maya calendars and the issues related to the correlation problem.
She provided a beautifully illustrated workbook, with extensive information on the Long Count and correlation factors.

She then presented a lecture on her proposed solution to the Mesoamerican accounting of the tropical year: the addition of an uncounted quarter day each solar year, through the directional rotation of the year-bearers, which allows ahaab’ of 365 k’in (calendar days) to equate to the tropical year of 365.25 days, and a thirteen-year suspension of such directional rotation at the close of every Bak’tun to achieve an average year of 365.2423 days. Originally based on insights from her ethnological research into contemporary indigenous Mesoamerican thought and ritual, Dr. Patrick’s solution is supported by numerous astronomical dates from the pre-Hispanic Maya inscriptions and codices, including the Dresden Eclipse Table.

Geraldine Ann Patrick Encina is a member of the Otomi-Hñahñu Regional Council in Mexico, and a professor of ethnoecology. Born to Chilean parents of Celtic and Mapuche origins, Patrick Encina received her doctorate in ethnoecology and social sciences from El Colegio Mexiquense, A. C. in 2007; she also holds a bachelor’s degree in biological sciences. She has been a visiting professor in Honduras and Argentina, and held faculty positions at several Mexican universities. Her research focuses on archaeoastronomy and cultural astronomy, particularly on ancestral and current ways of measuring and conceiving time and natural cycles in Mesoamerica, especially among Maya, Nahua and Otomian cultures. She will serve as a Scholar-in-Residence at the Center for Earth Ethics at Union Theological Seminary.

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