The year is around 238 BCE, I have played somwhat according to high rules,
no attacking unless attacked, etc. Is there some type of event around that time? Cuz 5 factions declared war on me simultaneously.

In a single turn I got these messages:

Declared War:

Rome v Carthage (biquiswhatever)
Rome v Greeks (Konin Hellen)
Rome v Ptolemy
Rome v Seleucid
Rome v Macedon

Broken Alliances:
Rome & Carthage
Rome & Macedon

Carthage & Macedon were my allies, and betrayed me when Carthage seiged a city in eastern Iberia, while Macedon
tried to take a city in Greece.
Ptolemy attacked my army in Egypt, and Seleucid seiged my Alexandria. Greeks attacked Athens from ships via Rhodes.

yeh...?