Antigonid UB idea:
Observatory is replaced with philosophical academy (bigger science bonus, or a culture bonus added).
Antigonid UP idea:
Greek Monarchy: starts with bureaucracy (instead of Tyranny).
This reflects the fact the Antigonid kings allowed councils and assemblies to help make decisions, in contrast to the other deified Seleucids and Ptolemies.
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My severely overextended Antigonid empire. Seleucid army was busy in the East for some reason, and I got peace before the 7-stack of hoplites, elephants and spearmen got to my borders. Ptolemaic army was attacking the Seleucids through the desert next to Jerusalem.
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Perhaps Sinope should be made independant from start (Pontus).
Further update: I discovered monarchy first, but the "7 world wonders" UHV fired. Some wires got crossed there I think.
Another comment as I go: why does the peltast upgrade to a heavy spearman?

I don't have access to my very useful UU as soon as I get military drill.
Also the subjugation UHV failed despite both conditions checking true the turn before 100 BC, in a weird way:
Strangely, the condition checked true on 100BC and I got a golden age from it, but then the condition checked false the turn after.
Yeah, the UHV needs revision somewhere because I went from 2/3 to 0/3. Also, does the "wonders" UHV check for religious wonders like the Statue of Zeus?
And there really should be a sheep ressource in the mountains north-west of Pella, as the greek mountain dwellers were known to raise sheep. This will make Pella, the capital of the Macedonian empire, more appealing. Maybe copper in the hills north-east of Pella, to provide Macedon with metal that is not anywhere to be found in Thrace or Greece, since I'm guessing you'll confine the Antigonids to that are circa 230s BC.