worship of images.

788. Bavaria is brought completely under the sway of Charlemagne.

789.[85] The first recorded inroad of the Northmen (Danes) into England.

790.[86] Publication of the _Caroline Books_, being the judgments of the
general council of the bishops of the West on certain religious dogmas.

791. First campaign of Charlemagne against the Avars or Huns; they are
defeated.

792. King Offa murders Ethelbert and annexes East Anglia to Mercia; in
atonement for his crime he levies a tax on his subjects to support the
school founded at Rome by Ina; this is afterward converted into "Peter's
pence."

797. Irene deposes and puts out the eyes of her son, Emperor Constantine
VI of the Eastern Empire.

799. Charlemagne finally conquers the Avars or Huns.

800. Pope Leo III presides at the coronation of Charlemagne as emperor
of the West. See "CAREER OF CHARLEMAGNE," iv, 334.

Egbert is recalled from France by the West Saxons, who make him their
king; the name of England is given to his dominions.

801. Barcelona is conquered from the Moors by the Franks.

802. Harun-al-Rashid murders the Barmecides, a powerful Persian family
of high renown.

807. Harun-al-Rashid founds public schools; he sends an embassy to
Charlemagne with rich presents, among which is a curious clock of brass.

The Saracens of Spain repulsed in their attempt on Sardinia and Corsica.

812. Civil war ensues between the sons of Harun-al-Rashid, who had died
three years previously.

813. Constantinople menaced by the Bulgarian khan Krumn.

814. Death of Charlemagne; Louis _le Debonnaire_, his only surviving
son, succeeds.

815. Louis exacts an apology from Pope Leo for having exercised civil
judicial power at Rome.

817. Partition of the Frankish empire by Louis _le Debonnaire_.

826. Harold of South Jutland baptized; he receives from Louis a grant of
land in Friesland.

827. The Saxon heptarchy founded by Egbert, King of Wessex. See "EGBERT
BECOMES KING OF THE ANGLO-SAXON HEPTARCHY," iv, 372.

Beginning of the Saracen conquest of Sicily.

828. Syracuse and a great part of Catalonia captured by the Saracens.

829. North Wales submits to Egbert. Dungallo, a monk who had written a
book in defence of image-worship, is placed over the school of Pavia.

830. First rebellion of the sons of Louis _le Debonnaire_.

832. Danes land on the Isle of Sheppey, England.

833. Louis is a prisoner in the hands of his son Lothair, who assum