Heliopolis (ancient Egypt) from him the true length of the year and month, upon which he formed his octaeterid, or period of 8 years or 99 months. Ptolemy II had Manetho, the chief priest of Heliopolis, collect his history of the ancient kings of Egypt from its archives. The later Ptolemies probably took little interest in their "father" Ra, and Alexandria had eclipsed the learning of Heliopolis; thus with the withdrawal of royal favour Heliopolis quickly dwindled, and the students of native lore deserted it for other temples supported by a wealthy population of pious citizens. By the 1st century BC, in fact,
Conference of Rulers a year. Should the "Yang di-Pertuan Agong" or at least three members of the Conference request it, however, the Keeper of the Rulers' Seal may convene a meeting of the Conference of Rulers. Meetings will also be convened not later than four weeks before the end of the five-year reign of the "Yang di-Pertuan Agong", or whenever there is a vacancy in either his seat or that of his deputy. The Conference generally meets at the Istana Negara (National Palace), but meetings may be held at other venues should the members of the Conference consent. Meetings have been held on