Although «somehow» sounds ironic (and I do not understand why, since you are the winner). I will explain it to you as briefly as possible, because it is a huge subject, involving exactly 67 years of battles with many dead on both sides.
In what I am about to set out, there are 2 opposing sides: the Atheniotes and the Fertoi. The Atheniotes were divided into 4 groups:
1. Kastrinoi. These were divided into: a) Greek-speaking Atheniotes, accounting for more than 75% (of the Kastrinoi), b) Greek-speaking Arvanites (mainly the Gkagkaroi*) and c) Albanian-speaking Arvanites (mainly in Plaka).
2. Xotarides. These were divided into: a) Greek-speaking Atheniotes (in almost all the villages around Athens (Drakos (Pereas), Sepeti, Raveisi, Ramnes, Bithoulas, Zofrea (Nozea), Panakota, Ampelokipi, Kakouri(!)anoi, etc.), b) Greek-speaking Arvanites (Kara Memet, Drakos (Pereas), Keratzini and generally the villages of Agrimeio), c) Albanian-speaking Arvanites (Kara Memet, Kamarisa of Athens, etc.) and d) Albanian-speaking Atheniotes (Dragoumanou, etc.)
3. Other Atticans. These were divided into: a) Albanian-speaking Atticans (mainly in Marousi, Menidi, Koukouvounes, Kifisia, etc.), in a very large proportion, b) Albanian-speaking Arvanites (mainly in Berchami, Spata, Liosia, Liopesi, Keratea, Koropi, Kouvaras, etc.), c) Greek-speaking Atticans (Pikermi, Leontari, Kifisia, Varibobi, etc.) and d) Greek-speaking Arvanites (Bei Sefer, Varibobi, etc.).
4. Others. These were divided into: a) pre-Revolution Vlachs and Sarakatsani (Trel(i)otes), who had their winter pastures within the nahiye of Athens, b) pre-Revolution Kiouledes (mainly Negroes), c) pre-Revolution Mustaminides (very few).
The derisive name for all of them was «Gkagkaroi».
The Fertoi, meanwhile, were divided into:
1. Greeks from abroad, islanders or otherwise, mainly from Thrace (the largest group of all), Epirus and Macedonia. They were mainly wealthy and highly influential. This group was larger in population than the next one at least until 1850. Their derisive name was «Bourtzovlachoi».
2. Mainland Greeks from within the country, from the Morea and the rest of Livadeia (Central Greece), who were mainly poor. Their derisive name was «Karavlachoi».
3. Greek islanders from within the country. Their derisive name was «Trat arides».
4. Bavarians. Mainly Bavarians, but not exclusively. Their derisive name was «Koutofrangoi», but because everyone was afraid of them, they were usually called «Bavarezes».
*: The Gkagkaroi were the most capable and most rebellious Albanian stradioti of the Venetians. After the Third Venetian–Ottoman War (1540), they were discharged by the Venetians and remained Vagarii (= stradioti without military pay). Thus they were left in Nafplio, where a generation later they rebelled. The Turks therefore decided to exile them and, through a peaceful ruse between 1571~1579, sent them throughout the Attica basin (mainly to Athens, Marousi, etc., but also outside it (mainly to Spata, etc.)). Fierce as they were, they formed a class of their own; one might say that they positioned themselves between the Athenian aristocrats and the householders. In time they changed language, but their surnames betrayed them (e.g. Liapis).
Here, then, is the chronology in brief:
05/1832: The Regency orders the architects Stamatis Kleanthis and Eduard Schaubert to draw up a new plan for the city of Athens, based on the work they had undertaken voluntarily up to that point.
12/1832: The architects Stamatis Kleanthis and Eduard Schaubert submit the new plan for the city of Athens. This plan encroaches on the property of the locals, both Greek-speaking and Albanian-speaking, exploiting the fact that the Atticans had borne one of the heaviest burdens of the war, with more than 25% of their population dead (which is why you rarely encounter not only genuine Athenians, but Atticans in general).
25/01/1833: Otto arrives in Nafplio.
03/06/1833: The Atheniotes, aware of the Regency’s and the wealthy Greeks’ (mainly those from abroad (Bourtzovlachoi)) plans to move the capital of Greece to Athens, as well as of Kleanthis and Schaubert’s unacceptable plans, send a letter in which they ask (I would say flatter) the Regency to agree to make Athens the capital (as if it had any other plans), while also demanding fair compensation. There are 7 relevant articles which need not be mentioned. In brief, the Atheniotes reasoned as follows: if we are to become the capital, something we do not want, then, if we are fully compensated, it might be worth becoming the capital, because our houses and shops will then be rebuilt. Thus they falsely declare everything to be in ruins, since the committee, almost 4 months later, would find many still standing (≈600), or at least repaired (Archaeological Bulletin, 1929).
29/06/1833: The plan for the new city of Athens by the architects Stamatis Kleanthis and Eduard Schaubert is approved, with only minor modifications.
07/1833: Implementation of the plan for the new city of Athens by the architects Stamatis Kleanthis and Eduard Schaubert begins, without any delay. The marking out of the planned roads and squares therefore begins, along with the identification and assessment of the houses and plots affected by the new street plan. Only then do the inhabitants realise what damage they will suffer, especially with winter approaching. Riots break out in Athens. (Travlos).
08/1833: The riots cease and negotiations begin between the government and the Athenian senate.
30/08/1833: An agreement is signed by both sides (the Committee and the Athenian Senate), recording for each plot its area, wells, pits, ovens, etc., as well as all sound buildings within the plot (houses, etc.). Partly ruined buildings are excluded (they will not be counted as buildings), as is unbuilt construction material, which will be given to the owners (as building material). Finally, it is stated that most householders were questioned (with a gun held to their heads) and all replied: «We willingly grant our houses to our King, …»
15/10/1833: The government Committee, together with the Athenian committee, ratify the measurements and compensation for each affected inhabitant (Archaeological Bulletin, 1929).
16/10/1833: The Athenian Senate ratifies the measurements and compensation for each affected inhabitant (Archaeological Bulletin).
11/1833: Implementation of the plan for the new city of Athens by the architects Stamatis Kleanthis and Eduard Schaubert is rejected.
10/01/1834: The government prepares to enter into an undeclared war with the Atheniotes and, as a first step, abolishes the institution of the municipal elders (Government Gazette), in order to weaken the cohesion of the Atheniotes.
18/09/1834: The Regency signs the Decree transferring the capital from Nafplio to Athens (Government Gazette). On the same day, the new plan for the new city of Athens by the Saxon Leo von Klenze is also approved; it is considerably more moderate than the previous one. This is also the government’s last concession.
10/1834: The military units and administrative authorities arrive, and the expropriations begin. It is only to be expected that a second round of riots will also begin among the Atheniotes; this one is particularly bloody.
11/1834: The day of Otto’s arrival approaches. The Atheniotes unilaterally announce a ceasefire, hoping for some agreement upon the King’s arrival.
11/1834 (or 02/1835)~07/1835: The wall of Hadji Ali Haseki is demolished. It had been built with great effort by the Athenians only in 1778, although it had suffered serious damage in 1826. Beyond its practical significance (nearby building material for various nearby public buildings), the demolition of the wall also has symbolic significance.
01/12/1834: Otto arrives in Athens.
01/1835: The Regency has no intention of making any further concessions; the expropriations continue, while the Atheniotes find themselves living in tents through the winter and take up arms again, beginning a third round of riots. With the help of Greek soldiers, the Bavarians drive the Atheniotes into the mountains. The Atheniotes are trapped in towers and burned alive. Those who survive are arrested, stripped and imprisoned in appalling conditions, while their families are driven from their homes, resulting in their complete impoverishment and social exclusion by the Fertoi. The Atheniotes gather in relatives’ houses, mainly in Psyrri and Voreas. Koutsavakism begins, and their suffering is recorded in their moumourika songs (the forerunner of rebetiko). The painting «Der Widerstand von vierzig griechischen Rebellen» dates from this period in Athens, not from Thebes in 1833 as it was later attributed, in order to conceal the state crimes against the indigenous population.
11/01/1835: The urbanisation of Piraeus also begins, with the expropriation of fields, so that the village of Pereas (also known as Drakos) can become a city and the country’s principal port. The relevant Government Gazette notice (Government Gazette) was posted in all the municipalities of Attica, rather than in all the municipalities of the kingdom, so that the buyers would mainly be Atticans, thereby placating the Athenians, who had begun to commit indiscriminate violence against people from the provinces. On the other hand, however, this decree promised the Chians a subsequent decree with particularly favourable terms for purchasing land in Piraeus.
27/02/1835: The government expropriates plots in Piraeus and grants them to Chians on extremely favourable terms (Government Gazette).
1838~1880: This period is characterised by numerous murders, committed by both sides. The Atheniotes rob and kill the Fertoi, while the army and police kill the Atheniotes and their children and rape their women. In May 1844, the Athenians comprised less than 1/3 of the population of the then municipality of Athens.
Incidents (battles and diplomacy):
1838 Fertoi victory
1839 Atheniotes victory
1840 Fertoi victory
1844 Fertoi victory
1845 Atheniotes victory
1846: Atheniotes victory
1847: Fertoi victory
1850: Atheniotes victory
1853: Fertoi victory
1851: Fertoi victory.
1853: Fertoi victory.
1854: Atheniotes victory.
1957: Atheniotes victory.
1857: Fertoi victory.
1862: Atheniotes victory.
1864: Atheniotes’ civil war through a police ruse.
1865: Atheniotes victory.
1866: Fertoi victory.
1869: Fertoi victory.
1870: Atheniotes victory.
1874: Atheniotes victory.
1879: Fertoi victory.
1880: Fertoi victory.
1895: Atheniotes victory
1895: Atheniotes victory
1899: Fertoi victory; Athenian koutsavakism dies along with the Atheniotes and Fertoi koutsavakism begins, hence the transition from the foustanella of the old μάγκας (rebetis, call him what you like) to the tailcoat (a symbol of the Bourtzovlachoi), shortly after 1880.
In 1921, the Athenian arms are not honoured. Between 1922~1980, the old cemeteries are emptied of the bones of the heroic ancestors who truly liberated Greece. And they are thrown into rubbish tips! Everyone was honoured except the Athenians, our disgraceful association said almost 80 years later. In 2021, even non-existent people (not to mention places) were honoured, when in the records of the Revolution you would be hard-pressed to find 1 in 1,000 revolutionaries. I shall finish with the words of Makriyannis, whose army consisted of Atheniotes and a few Thebans (Thebaians) and who, although not an Atheniote, defended our just demands more than anyone else: «What sort of freedom you are supposedly preparing to give us, we can see! The land which we liberated through our struggles and our blood, you give to your comrades, and they buy it—the very people who made us suffer while we were being killed. They enjoy it; they buy the land, wild and cultivated, for a groschen an acre, and so do all those who are your flatterers and informers. You seek to impale us.»