1352: Mamluk Egypt allies with Sultanate of Konya against Choresm. The invade Syria together, defeat the Choresmian armies several times. 1353-55: Kay Khusrau IV of Rum attacks Bulgaria, takes the capital of Tarnovo. 1360: Karvuna (OTL Dobruja) is made a tributary of the Rum-Seljuks. 1361: Rum-Seljuks conquer Thessalia back and invade the duchy of Athens. The crusaders are now restricted to the Peloponnes, Epirus and the Aegaean islands. 1362: Shi'ite revolt in Persia begins, which will eventually lead to Persia becoming independent again. 1377-81: Black Death hits Persia.