Trojan War was reunited with Menelaus. Proteus also told Menelaus that he was destined for Elysium (Heaven) after his death. Menelaus returned to Sparta with Helen eight years after he had left Troy. Agamemnon returned home with Cassandra to Argos. His wife Clytemnestra (Helen's sister) was having an affair with Aegisthus, son of Thyestes, Agamemnon's cousin who had conquered Argos before Agamemnon himself retook it. Possibly out of vengeance for the death of Iphigenia, Clytemnestra plotted with her lover to kill Agamemnon. Cassandra foresaw this murder, and warned Agamemnon, but he disregarded her. He was killed, either at a feast or in
History of Sparta Persians at the battle of Plataea. The decisive Greek victory at Plataea put an end to the Greco-Persian War along with Persian ambition of expanding into Europe. Even though this war was won by a pan-Greek army, credit was given to Sparta, who besides being the protagonist at Thermopylae and Plataea, had been the de facto leader of the entire Greek expedition. In the same year a united Greek fleet under the Spartan King, Leotychidas, won the Battle of Mycale. When this victory led to a revolt of the Ionian Greeks it was Sparta that rejected their admission to the