Theban hegemony

The Theban hegemony lasted from the Theban victory over the Spartans at Leuctra in 371 BC to their defeat of a coalition of Peloponnesian armies at Mantinea in 362 BC, though Thebes sought to maintain its position until finally eclipsed by the rising power of Macedon in 346 BC.

Externally, the way was paved for Theban ascendancy by the collapse of Athenian power in the Peloponnesian War (431–404 BC), through the weakening of the Spartans by their oliganthropia (demographic decline) and by the inconclusive Corinthian War (395–386 BC). Internally, the Thebans enjoyed two temporary military advantages: