I think this is because of the major plantations in the south. the north had plants or crops but only substantial (enough to feed family). the north mainly focused on things like their ships and other major industries. the south focused on plantations and had little to no industries
King Sundiata
Hope it helps!
Athens was overconfident when it entered the war, imagining the combination of the money it collected from its empire, the strength of its walls, and the dominance of its navy would see it through. The Persians swung the balance, donating money to the Peloponnesian League to buy and man a fleet to match the Athenian one. With it's fleet defeated, its sea food route closed, and city besieged, Athens was starved out.
Do you want the dates when each event happened or who was the president during each event ?