Historical and Political Snippets in Time
The following entries mark events of historical or political significance
over the period 821 A.D. through 830 A.D.
- 821 to 830
- Cenwulf of Mercia d. 821--end of Mercian supremacy
in England
- Abd-al-Rahmam, Caliph of Cordoba (822 - 852)
- Constitutio Romana confirms imperial control of
Rome (824)
- Egbert subdues and unites Eng. part-states (824)
- Battle of Ellandum: Mercia defeated by Egbert (825)
- The Saracens in Crete (825)
- The Arabs conquer Crete and plunder from there to
the Greek islands (826)
- King Harold of Denmark, baptized at Mainz, returns
to his country with missionary monk Ansgar (801 -
865) who spreads Christianity in Scandinavia (826)
- Arab conquest of Sicily and Sardinia begins (827)
- Egbert of Wessex recognized as overlord of the "Seven
Kingdoms of the Heptarchy" (828)
- Theophilus, Byzantine Emperor (829 - 842)
- King Loius the Pious invests his six-year-old son
Charles (the Bald) with the dukedom of Swabia (829)
- Prince Moimir founds the Great Moravian Empire, and
rules it till 846 (830)
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