when was the peloponnesian war
History of the Peloponnesian War. 10th-century minuscule manuscript of Thucydides's History. The History of the Peloponnesian War (Greek: Î¹ÏÏÎ¿ÏÎ¯Î± ÏÎ¿Ï ÏÎµÎ»Î¿ÏÎ¿Î½Î½Î·ÏÎ¹Î±ÎºÎ¿Ï ÏÎ¿Î»Î­Î¼Î¿Ï) is a historical account of the Peloponnesian War (431â404 BC), which was fought between the Peloponnesian League (led by Sparta) and the Delian League (led by Athens).