Chalcedon

The Coptic Church separated from other Christian denominations at the Council of Chalcedon in 451, in a dispute over the human and divine nature of Jesus Christ.

In the early third century Herophilus of Chalcedon, the brilliant Alexandrian anatomist, invented a device for timing the pulse.

The Council of Chalcedon was another hundred years later in 451, when it standardized theology that that Christ was fully human and fully God.

The Chalcedon Foundation posted a brief blog about Phillips’ death, calling him a “longtime Chalcedon colleague and supporter, and close personal friend to R. J. Rushdoony.”

And second, that the schism in the church after the Council of Chalcedon in AD451 was a major turning point in ecclesiastical history.