Scope Of Chapter 55
From 'Fall In The East' of The Decline And Fall Of The Roman Empire by Edward Gibbon

The Bulgarians— Origin, Migrations, and Settlement of the Hungarians— Their Inroads in the East and West— The Monarchy of Russia— Geography and Trade— Wars of the Russians against the Greek Empire— Conversion of the Barbarians

AD	Event
680	Emigration of the Bulgarians
900	Croats or Sclavonians of Dalmatia
640-1017	First Kingdom of the Bulgarians
884	Emigration of the Turks or Hungarians, Their Fennic Origin
900	Tactics and Manners of the Hungarians and Bulgarians
889	Establishment and Inroads of the Hungarians
934	Victory of Henry the Fowler
955	Victory of Otho the Great
839	Origin of the Russian Monarchy; The Varangians of Constantinople