The first manvantara or cosmic day of the current Mahamanvantara, which corresponded to the mental aspect of the fifth dimension. It is symbolized in Greek and Roman mythology as Arcadia. Read Revolution of Beelzebub by Samael Aun Weor.
"The one who does not know how to fulfill his duties as a simple citizen cannot tread the path of the great mysteries. Many disciples forget the good manners of a sincere and honorable gentleman or lady and become truly irresponsible and even dangerous individuals."