阳土猴年 (male Earth-Monkey) −305 or −686 or −1458 — to — 阴土鸡年 (female Earth-Rooster) −304 or −685 or −1457
Year432 BC was a year of thepre-Julian Roman calendar. At the time, it was known as theYear of the Tribunate of Mamercus, Albinus and Medullinus (or, less frequently,year 322Ab urbe condita). The denomination 432 BC for this year has been used since the early medieval period, when theAnno Dominicalendar era became the prevalent method in Europe for naming years.
Sparta calls and hosts a conference of thePeloponnesian League. The conference is attended by Athenian representatives as well as members of the League. Following arguments byCorinth againstAthens, a majority of the League members vote to declare that the Athenians had broken the peace.[1]
The Athenian admiral,Phormio, continues the siege ofPotidaea by blocking the entrance to theGulf of Corinth. Meanwhile an Athenian fleet, led byArchestratus, sails for Potidaea. However, instead of attacking Potidaea, they attack theMacedonians underPerdiccas II, who have allied with the Potidaeans. The Athenians captureTherma (modernThessalonica) and then go on to besiegePydna. However, as the Athenians are besieging Pydna, they receive news that Corinth has sent a force under the command ofAristeus to support Potidaea. In response, Athens sends more troops and ships under the command ofHipponicus. The combined Athenian force sails to Potidaea and lands there. In the ensuingBattle of Potidaea, the Athenians are victorious against Corinth and its allies.[citation needed]
The ChineseMarquis Yi of Zeng is buried (approximate date) with lavish tomb items including a 65 set of bronze bells (bianzhong) with fiveoctave musical scale and two musical tones that can be produced by each bell. Marquis Yi was from theState of Chu during theWarring States phase of theZhou dynasty.[3]
Meton of Athens, a Greek mathematician and astronomer, calculates accurately the comparative chronology of the solar and lunar cycles. As a result, he introduces the 19-yearMetonic cycle into the Atheniancalendar as a method of calculating dates. Working withEuctemon, he observes the summersolstice on 27 June.[4]
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