While I myself was born in Chicago, I could literally not possibly care less about it, so I'll choose my family's home-town of Marmari, a small town in Euboea (pronounced Évia).
*1204: The Euboeans tell the Crusaders that they can go fuck themselves and repel the heathen invaders.
*The true Emperor, Alexios V Doukas only briefly stays in Mosynopoli and makes his way to his loyal subjects in Euboea.
*The Emperor and his new wife, Angelina Evodokia, rally the natives of the island to build up the isle and fortify it to ward off the conniving Westerners. Halikida, Eretria, Karystos, Saint Constantine, and a city close to the mainland, Marmari, all nearly overnight became walled fortress-cities.
*The Emperor is accepted by his subjects who also fought off the marauding, bastardy Crusaders in Anatolia. He vows never to forget the island and what it did for him.
*Marmari undergoes an economic and population boom as refugees sick of Crusader rule flee to the island. Its population sky-rockets to 1.000 people.
*Unfortunately, in 1290, Venice besieges the southern part of the island, hellbent on its subjugation, and conquers all the cities south of Marmari by July. The Doukas Family, still in power in Nikaia, maintains their dead patriarch's vow and begins a campaign to knock out the Venetians from Greece, once and for all.
*Marmari is used a launch-pad for thousands of Roman soldiers with justice in their eyes and revenge in their hearts and is at the front-lines of the Reconquista.
*By 1313, the Venetians are cleared out of all of their non-Italian possessions. Cyprus, Crete, the Ionian Islands, Lesvos, Hios, Dyrrhachion and the rest of Venetian Ipiros, and southern Euboea are all retaken. Thousands of Greeks can rejoice that the hated and vile Papists have been forever cast out of their land and made their way to the hateful homeland with their tails between their legs. Unfortunately, however, in some areas the Venetians and the Crusader lackeys employed a scorched-earth policy and burned areas where they were cast out. Southern Euboea was one of them.
*Marmari was at the forefront for rebuilding lands reclaimed from the Italians and saw a temporary population-jump to 2.000. Its economy once again boomed.
*By 1315, however, many citizens of Marmari left to repopulate their old homelands. The population climbed back down to 700, many people born within the city.
*Life continues as usual in the city. Roman ships always dock within Marmari's port on their way to harass the cowardly Catholic Crusaders and by 1387 Marmari is the staging-point for the reconquest of Athena and the entire south of Greece.
*By 1400 Rome's European possessions are once again back in Roman hands. Many Marmarions gave their lives to see the Eagle firmly planted in Thrace, Macedonia, Ipiros, and Central Greece. After that, Rome focuses on fortifying its possessions in Anatolia and protecting itself from the Turkish hordes.
*Because Rome united earlier and could rally itself around a true emperor and thus had a massive morale-boost, the Ottomans could not press westward and instead pressed eastward, down into northern Syria and into Aleppo by 1400.
* Fast-forward to 1415 and the Romans and Ottomans have a gentleman's agreement: the Romans shall go no further than the Great Salt Lake and the Ottomans shall do likewise. Trebizond, however, is not part of the agreement and only comes back into the Roman fold when it becomes evident that the Ottomans can and will take the coastal strip-of-land if they can.
*After 1415 when Roman power is once again consolidated, Marmari returns to a sleepy town who does more business in being a port-town than any economic ordeal.
*Fast-forward again to the early 1800s and two families of rich merchants from Smyrna set up shop in the town and begin the town's silk industry. Marmari once again is reinvigorated economically-speaking and even gets a boost in population from workers seeking to earn an honest living in the silk-weaving factory. It is in Marmari that the power-loom makes its way into Romania and into the East. The Ottomans try a similar venture in their capital, Halep (Aleppo) and it is there that the power-loom is seen in the east.
*By 2011 Marmari is city of 50.000 and its principal sources of income is simply the service sector, although quite a bit of cloth is still produced there which then makes its way to one of the fashion capitals of the world, Constantinople. Adding to its population were the cities absorbed into Marmari-proper, Karystos and Saint Constantine.
*It should be noted that in 1911 the city of Massaoua in colony of Erythraía was renamed New Marmari. Today New Marmari is part of the overseas province of Hamasien.