For the John Cage composition see 4′33″.400s | dp2=410s | dp1=420s | d=430s | dn1=440s | dn2=450s | dn3=460s }} Events By Place Western Roman Empire Petronius Maximus becomes Consul. By Topic Religion John of Antioch and Cyril of Alexandria sign the Formula of Reunion, thus ending their conflict over the Nestorian controversy and the First Council of Ephesus. Births Liu Bing Deaths John Cassian, one of the Desert Fathers, monk, Christian saint, writer Juqu Mengxun Xie Lingy… (More on 433)