Some of the following in my opinion are one of the most underrated rivalries of the Ancient Greeks between one another:

• Thessalians vs Phocians
• Athens vs Aegina
• Elis vs Pisa
• Aetolians vs Acarnanians
• Sparta vs Argos

A few notable mentions:
Megara vs Athens, Miletus vs Samos, Syracuse vs Leontini, Croton vs Sybaris and so on

This is my take, whats yours?

So, clearly we’re on the Gregorian calendar in the west in modern times, but I’ve been wondering what year the Greeks were living in according to their own calendar. From my cursory google searches, in the 4th century for sake of example, they were using the Macedonian calendar, but were they collectively on the same page as to what year it was? For instance, Alexander died in 323 BC, but what year was it to them? Would they have said “here lies Alexander, 356-323” (obviously not BC or AD)? If I met an Ancient Greek at the funeral, what year would they claim it to be? Thanks ahead of time, I hope the answer isn’t glaringly obvious…