About: http://webisa.webdatacommons.org/407712774

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	It appears there is a 250-year solar cycle that influences droughts and insect infestations both of which can lead to famine, one of the primary concerns of the Mayan prophetic system.
http://www.w3.org/ns/prov#wasQuotedFrom	amazon.com