 The Theban victory shattered Sparta's immense influence over the Greek peninsula, which Sparta had gained long before its victory in the Peloponnesian War a generation earlier.In 371 BC, the newly established democracy of Thebes had elected four Boeotarchs, the traditional title of the generals of the Boeotian League, and so proclaimed their intention of reconstituting the aforementioned league that Sparta had disbanded.During this period, Thebes had had an ally in Athens, but Athens was far from happy with the treatment Plataea had received.