Explore the major historical events, famous births, and notable deaths that occurred in the year 1054. This year saw 4 significant events.
The Great Schism between Western and Eastern churches begins when Roman Cardinal Humbert issues a bull of excommunication against Cerularius, Patriarch of Constantinople, on the altar of the Hagia Sophia in Constantinople
Pope Leo IX escapes captivity and returns to Rome
Brightest known supernova SN 1054 (creates the Crab Nebula) 1st reported by Chinese astronomers
Patriarch of Constantinople Michael Caerularius, as head of a Synod held in Constantinople excommunicates Cardinal Humbert of the Western church (Rome)
The Great Schism between Western and Eastern churches begins when Roman Cardinal Humbert issues a bull of excommunication against Cerularius, Patriarch of Constantinople, on the altar of the Hagia Sophia in Constantinople
Pope Leo IX escapes captivity and returns to Rome
Brightest known supernova SN 1054 (creates the Crab Nebula) 1st reported by Chinese astronomers
Patriarch of Constantinople Michael Caerularius, as head of a Synod held in Constantinople excommunicates Cardinal Humbert of the Western church (Rome)