→Late Byzantine era (843-1453)
*1015 Death of St [[Vladimir of Kiev]], Prince of Rus', apostle of the Russians and Ruthenians.
*1017 Danish king Canute converts to Christianity.
*1051 [[Monastery of the Kiev Caves]] founded.
*1054 Cardinal [[Humbert]] excommunicates [[Michael Cerularius]], Patriarch of Consantinople, a major centerpoint in the formation of the [[Great Schism]] between East and West.