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,
Education in ancient Tamil country Education in ancient Tamil country Education was considered important in Ancient Tamizhagam as they considered the mind of the uneducated to be an "abode of darkness". The period of acquiring knowledge was during youth. The rulers and aristocrats of ancient Tamilakam were always conscious of their duties to their country. They considered development of education as an important duty. So the kings and chieftains took all measures for the education of people. Naladiyar one of the Tamil books of Law lauds that "men gathered books in abundance and filled their house with them." They studied science, mathematics, engineering, astronomy, logic