Ecumenical Councils: Did you mean...?

The Doge's Palace, or Palazzo Ducale, in Venice, Italy, was the seat of power of one of the world's most powerful city-states, as the Venetian Republic dominated the Mediterranean for centuries. The bright façade of the palace marks the very...

Icon from the Mégalo Metéoron Monastery in Greece, representing the First Ecumenical Council of Nicaea in 325 CE, with the condemned Arius in the bottom of the icon.

The Byzantine Empire existed from 330 to 1453. It is often called the Eastern Roman Empire or simply Byzantium. The Byzantine capital was founded at Constantinople by Constantine I (r. 306-337). The Byzantine Empire varied in size over the...

The Empire of Nicaea was a successor state to the Byzantine Empire, or rather a Byzantine Empire in exile lasting from 1204 to 1261 CE. The Empire of Nicaea was founded in the aftermath of the sacking of Constantinople during the Fourth Crusade...

The Index of Prohibited Books (Index Librorum Prohibitorum) was a list of written works condemned as heretical or injurious to the Christian faith by the Catholic Church at the Council of Trent in 1563. It remained in effect until 1966 when...

The Council of Chalcedon was called in 451 CE by the Roman Emperor Marcian (r. 450-457) to settle debates regarding the nature (hypostases, "reality") of Christ that had begun at two earlier meetings in Ephesus (431 CE and 439 CE). The question...

The Diet of Worms (January-May 1521) was the assembly convened by Charles V, Holy Roman Emperor to address, among other issues, the works of the reformer Martin Luther (l. 1483-1546) who openly criticized the Church. Luther was told to recant...

The House of Burgesses (1619-1776 CE) was the first English representative government in North America, established in July 1619 CE, for the purpose of passing laws and maintaining order in the Jamestown Colony of Virginia and the other settlements...

Anglo-Saxon warfare was characterised by frequent and violent conflicts between petty kings, which ultimately led to the rise of larger kingdoms such as the Kingdom of Mercia, the Kingdom of Northumbria, and the Kingdom of Wessex. In early...

Built in the seventh century BCE, the ancient city of Byzantium proved to be a valuable city for both the Greeks and Romans. Because it lay on the European side of the Strait of Bosporus, the Emperor Constantine understood its strategic importance...