S
WFirst Bulgarian Empire
WBattle of BoulgarophygonA
WBulgar–Serb War (839–842)
WBulgar–Serb War (853)B
WBulgarian–Hungarian wars
WByzantine–Bulgarian war of 894–896C
WChristianization of Bulgaria
WCroatian–Bulgarian warsD
WGlagolitic script
WPatleina MonasteryE
WBattle of Pliska
WRavna MonasteryF
WBattle of Southern Buh
WBattle of Versinikia