The oldest structure on the island is the kiosk built by Nectanebo I
(380-362 BCE). To the north of the kiosk he also built a temple gate which was
eventually integrated into the first pylon of the Temple of Aset. From this time
until the Roman period, many different temples were added to the island. Among those
was a temple of Het-Hert constructed under the Emperor Augustus.
Worship was continued on the island of Philae into the 6th century CE,
and both the last hieroglyphic inscriptions, written in 394 CE, and the last demotic
inscriptions, from 452 CE, are also found there. One reason that Philae was able to
continue the ancient Egyptian religion well into the Christian Era of Egyptian history was
due to its location far into Upper Egypt near the southern border, where it became a haven
for the faithful.
Philae served to disseminate Egyptian religion to Nubia and the Sudan in
the south during hundreds of years. Many of the reliefs and inscriptions of Meroe in
the Sudan show influence from the texts of the Temple of Aset at Philae.