There is actually more than one world here; see "The braided Streams of Time," under Steampunk)

AEgypt: The Two Crowns
AEgypt is divided. Lower AEgypt (the Delta) is ruled by Ptolomaic Queen Cleopatra IIX, while New Upper Egypt (Nubia) is ruled by Phaeroe ___ of the __th Dynasty.
The Ptolomaic dynasty rules the Delta and up the Nile as far as Hermopolis in strength, and as far as Asyut not so firmly. (ie, 100-150 miles of the Nile north of the Delta).It is supported by a fusion of Greek, Native, and Foreign (Persian, Phoenician, and other) elements. The culture is kept lively by the strong tension between the "Hellenic Purity" which aspires to create a civilization more Greek than Greece itself --to be what Greece could have been, and should have been, and would have been is only it had had the strength and wealth to be this splendid. They try to "out-Greek the Greeks" - but more splendidly. These folk see the natives as having lost their claim to greatness. "The ancient Egyptian culture was indeed the first and the brightest, but its true glory was short lived. Everything after the first dynasty was just a pale copy. And that first dynasty was, in fact, Greek!) These folk are likely to be racially biased. The "hybrid vigor party," or "Syncratisists" believes that Egypt's future lies in the fusion of the strength of the "three roots of "modern" Egypt, Greek, Native, and "Foreign." These folk seek creative ways to combine these elements.
In addition to incredible agricultural wealth engendered by the July and October Floods, the royal coffers are filled by taxing trade passing through the canal linking the Nile to the Red Sea and thus the sea-roads to India.
New Upper Aegypt is traditional Ancient Aegypt in all its glory. The capital Napata is near Meroe (Sudan). The Pharoe rules north down below the First Cataract to Luxor (Thebes) solidly, and to Abydos less firmly.
The Ghost Land: In between Ptolmaic and Pharonic Aegypt is a 100-150-mile stretch of Nile which neither can hold. Each attempts to move its border forward, and is rebuffed by the armies of the other. Gradually, a neutral buffer zone has developed. This is a lawless land, where each side send s its scouts and spies. This is where their armies clash, for in the last century, neither has succeeded in getting an army all the way through this stretch of the Nile valley to the boarder of the other's realm before a counter strike was launched. Only thieves and spies, outlaws and hermits live here now. Nature is wrapping the abandoned river cities in marsh and jungle. Above the riverbed, the higher cities are desolate, their irigation canals long dry. The asp and the vulture, the jackal and the burying beetle rule here now.

The Sea of Chad
The Sea of Chad is almost 100 miles wide and over 200 mile long, running sough to north. It is filled because most of North Africa of Azytwaznt is not as dry as in the real world. Much of the Sea of Chad is surrounded by a broad belt of marshland. This extremely productive black muck may reach half a hundred miles from the open water, and expends arms yet further. While the whole is peppered with little villages of diverse culture, the major cities tend to be either built on the firm edge of the lend around the marsh (or on hills, either artificial or natural) just within its boarder, or they are built along the edge of the sea, either on artificial hills or are actually floating.
The great __ Empire is about the size of Spain. It is the only city with both open access to the sea and a solid land rout to the terra firma beyond the marshes. It carries on extensive trade with the Mali Empire to the west and with Nubia (Paeronic Aegypt, in what is now the northern half of Sudan and Upper Egypt as far south as Luxor) slightly further to the east.

Nox and the Ever-Night Sea
The Sea of Chad has no surface outflow. Instead, it drains by a hundred seeps into a series of interlocking "puzzel lake" caverns, eventually flowing into the Ever-Night Sea under and to the north east of the Sea of Chad. From this vast cavern flows Nox, the Dark River. The Nox runs underground from the Ever-Night sea north to the Gulf of Sirt (Libya.)
The Nox has, over countless mellenia, cut itself a subterranean valley which is in some places thousands of feet deep. In a few places, the land above is low, and water flows up through capillary action through the stone to moisten the deep roots of a chain of oasises which describe a paralleled course overhead.

Mesopotamia The Land Between the Rivers, The Land of a Hundred Cities, the Land of the Walking Gods.

Mesopotamia: During the Antidiluvian Era of fabulous empires such as Atlantis and Lemuria, Mesopotamia was a collection of incredibly fabulous garden estates, the remnants of which would today be considered each a city-state. Their owners were an extended family of incredibly powerful majicians. They were essentially self-made gods. During the Flood, their estates were buried in silt, then covered in a layer of clay that hardened to become the basin of the current Mesopotamia. Subterranean seepage has since pulled the silt out from much of these ancient ruins. The gods retreated, or were entombed, or otherwise waited out the Savage Aeons until they were awakened
The Cataclysm that ended the rein on the self-made gods on earth rendered the earth inhospitable to them. . Today, from their floating palaces, they rule over their personal city-states through priest-kings.

There are indeed a hundred cities here. Each is the personal property of a particular god or family of gods. All of these gods are related in one big pantheon; they are one big extended divine family. As with most families, while they may squabble among themselves, they unite against any outside, common enemy. This why, while they may set their minions against each other's city-states, any betrayal to an outsider is punished by eternal imprisonment of the offending god and the abandonment of his or her city, its remains being Forbidden to all, to slowly, slowly decay.
In their floating palaces the gods walk about quite openly. On the ground, they rule through priest-kings. In any case, their presence has made the fantastic common in this land. Interestingly enough, when the more fantastic elements from the "heavenly palaces" to the ground, they decay quite rapidly. Fabulous beasts and birds sicken and die, items of fabric or leather or wood decay, and metal items rust or become fragile and break. Only a few sorcerer-priests know the majics needed to re-enforce items for export. Sentient fabulous being from this region will feel increasingly unhappy when they travel to earth, and are drawn to return to the palaces in the sky.
Gods, demonds, djinn - these are titles or descriptions. There's no real difference. Some are extraordinarily powerful, able to create floating islands in the sky or raise bronze cities up from the sands by sheer will, while others are very local and moderate in power.

The Feathered Apes
Africa during the Classical Era is home to many Black civilizations as noble as Humanity could ever be. African Humanity has at last overtaken the falling Civilization of the Feathered Apes (SEE Azytwaznt Antediluvian Epoch).
Unfortunately, the more degenerate of the two, Black and Feathered Ape, have begun to interbreed, leading to the debasement of both. The result is the growing prevalence of savage tribalism among the Blacks and the faster fall of Ape from sentience, sensitive, and civilized top brute beast. How savage or gentle a particular tribe of gorillas is depends on how debased - and perhaps inbred - it is. Some are but hyenas in primate form. A few are yet as worthy and fully souled as any human. Most have just become simple creatures of the jungle, little more than elder uncles of their relatives, the chimps. The range among Blacks is just as varied, from tribes which are barely more than beast to lines still noble and pure, yet masters of fine civilizations. What a pity none such will remain intact through to the Steam-punk era!
There are, however, troubling signs of the general debasement of the majority of lines of Blacks, in the form if a tendency towards savage tribalism

The Ophidians and Sauriens
The ancient civilizations of the these reptilian peoples did not completely die along with the rest of the dinosaurs. Cryptic remains linger. During the Antediluvian Epoch, a number rose to considerable heights.