He gives the "annals of all time," from the beginning of the world to his own period; and computes the second period from the Creation to the Deluge; from the Deluge to Abraham; from Abraham to David; from David to the Babylonian Captivity, &c.

He also synchronizes the eastern monarchs with each other, and afterwards with the Firbolgs and Tuatha De Danann of Erinn,[17] and subsequently with the Milesians.
Flann synchronizes the chiefs of various lines of the children of Adam in the East, and points out what monarchs of the Assyrians, Medes, Persians, and Greeks, and what Roman emperors were contemporary with the kings of Erinn, and the leaders of its various early colonies.

He begins with Ninus, son of Belus, and comes down to Julius Caesar, who was contemporary with _Eochaidh Feidhlech_, an Irish king, who died more than half a century before the Christian era.

The synchronism is then continued from Julius Caesar and _Eochaidh_ to the Roman emperors Theodosius the Third and Leo the Third; they were contemporaries with the Irish monarch Ferghal, who was killed A.D.

718.
The ANNALS and MSS.