By place 852

1 place

1.1 europe
1.2 britain
1.3 al-andalus

by place
europe

march 4 – trpimir i, duke (knez) of croatia, , founder of trpimirović dynasty, issues first state document in bijaći of slavonic peoples. in latin document trpimir refers himself duke of croats (dux chroatorum), , country state of croats (regnum chroatorum).
presian i, ruler (khan) of bulgarian empire, dies after 23-year reign in bulgarians have expanded upper macedonia , serbia. succeeded son boris i, monarch of bulgaria.
emperor lothair , (half) brother charles bald join forces remove vikings island of oscelles, in river seine. after has failed, charles again pays them tribute (danegeld).

britain

a viking fleet of 350 vessels enters thames estuary before turning north, , engages mercian forces under king beorhtwulf. mercians defeated, , retreat settlements. vikings turn south , cross river somewhere in surrey; there slaughtered west saxon army, led king Æthelwulf , son aethelbald, @ oak field (aclea).
king Æthelstan, eldest son of Æthelwulf, killed viking raiding party. succeeded brother Æthelberht, becomes sub-king of kent, essex, surrey , sussex (approximate date).
beorhtwulf dies after 12-year reign, , succeeded son burgred king of mercia.

al-andalus

abd al-rahman ii, umayyad emir of córdoba, dies after 30-year reign in has made additions mosque–cathedral @ córdoba. succeeded son muhammad i, put down several revolts of muladi , mozarabs in muslim controlled areas in al-andalus (modern spain).




^ paul hill (2009). viking wars of alfred great, p. 14. isbn 978-1-59416-087-5