Finally, the story of Alexandria is also the story of the Egypt's final dynasty, the 32nd dynasty. Originally Greek, the Ptolemies who ruled Egypt from Alexandria for a period of 300 years were quick to adopt Egyptian customs, even mummification, adding the Egyptian gods to their own pantheon and worshipping both.
Blending the indigenous with the foreign ensured the success of Ptolemaic rule, the increasing number of Greek citizens underwent a form of Egyptian-isation, meaning that they turned themselves to Egyptian deities, such as Isis and Osiris, in a similar sense as they would turn to the Greek counterparts. Greek as well as Egyptian deities stood side by side in temples.
Science also took on a greater part in Alexandrian society. Scientists such as Callimachus became known for compiling the ancient traditions while serving at court and Eratosthenes work in calculating the circumference of earth became known throughout the whole known world.
Furthermore the Ptolemies were instrumental in nurturing the cultural development of the city; one mayor example of this would be the implementation of monetary reforms in which the use of actual money was implemented.
The use of language was also changed somewhat, Egyptian being the language of the laws of religion and government and Greek being used as the language of the small number of wealthy landowners. All the while Egyptian demotic remained the language of the lower classes or Egyptian citizens.

Following in the footsteps of Alexander, they actively fostered the open-minded pursuit of knowledge and, under them, the city of half a million strong became the cultural and economic centre of the ancient world.

Credits:
Dr. Alten Müller. 1998. Ägypten Die Weltder Pharaonen.
McKay-Hill. 2004. A History of World Societies.
Background: Roseta Stone →
Images: Egyptian Clip Art→