The defeat of this city's invasion force at Syracuse in 413 B.C. was the beginning of its end & the start of Sparta's rise
), 
where... [DOC] [TLE] Thomas R. Martin, An Overview of Classical Greek History from ... [PAR] Athens and Sparta had cooperated during the Persian War, but relations 
between ... lifted its economic sanctions against the city-state of Megara, a 
Spartan ally that ...