Byzantine Empire, Caucasus: Baba Ishaq, an inspired preacher, originally from the Alevi Shi'ite sect and later a convert to Myriamism, leads a revolt in Cappadocia and Anatolia, establishing a religious state and converting most fellow Alevis and several half-pagan Turkic tribes to the new creed. Northern Europe: Alexander, a Rurikid temporarily elected as prince of Novgorod, routs the Finns and the Swedish crusaders of Birger Jarl on the Neva river (hence his surname, Nevskij); he also fends off the Danes and the Estonian tribes attacking Pskov.