The churches of the East gave the Roman See, primacy but not supremacy.

Lamsa was a member of the Assyrian Church of the East.

Surin was briefly Patriarch of the Church of the East in 753.

The canons of this synod were the last to have been recorded in the Church of the East before the nineteenth century.

The original name of our Church was the 'Church of the East' .

After a long vacancy in the patriarchate, he was elected patriarch of the Church of the East in 628.

Further splits into the 20th century further affected the history of the Assyrian Church of the East.

It served as the seat of a Metropolitan of the Assyrian Church of the East.

Of the many writings of Henana very little has been preserved, and the Church of the East has rejected him.

The ancient history of the Chaldean Church is the history of the Church of the East.

Like several other early bishops of Seleucia-Ctesiphon, he is included in the traditional list of patriarchs of the Church of the East.

Isaac was bishop of Seleucia-Ctesiphon, grand metropolitan and primate of the Church of the East from 399 to 410.

The Marganitha (which translates as "Pearl") is the most concise teaching of the Assyrian Church of the East.

Sometime later, it was adopted by the bishops of Seleucia-Ctesiphon in Persia, who became the designated heads of the Church of the East.

It appears that the city was the seat of an Assyrian Church of the East Christian bishopric as late as the 8th century AD.

Mar Aprem Mooken is the Assyrian Church of the East Metropolitan of India.

Mar Dinkha IV is the current Catholicos-Patriarch of the Assyrian Church of the East.

Shortly thereafter it became the seat of the Church of the East Patriarch Mar Yaballaha III.

They are believers of the two main Christian churches in the region: the Chaldean Catholic Church and the Assyrian Church of the East.

As with the Church of the East, it seems likely that a number of West Syrian dioceses in Mesopotamia came to an end in the fourteenth century.

In some instances, Manicheaism even surpassed the Church of the East in its reach, as it was for a time also widespread in the Roman Empire.

It was raised to the status of a metropolitan province of the Church of the East in the seventh century by the patriarch Ishoʿyahb III.

In 410, at the Council of Seleucia-Ctesiphon, Mar Isaac was elected as Catholicos of the Church of the East.

The current Seat of the Catholicos of Assyrian Church of the East is in Chicago, Illinois, USA.

From early centuries the Church of St. Thomas Christians came into communication with the Christian communities that came to be known as the Church of the East.