Why History of the central steppe and Kazakhstan are similar

Oghuz Turkic Sunni Muslim dynasty that gradually became Persianate and contributed to the Turco-Persian tradition in the medieval Middle East and Central Asia. The Seljuks established both the Seljuk Empire and the Sultanate of Rum, which at their heights stretched from Iran to Anatolia, and were targets of the First Crusade. Wikipedia

The continuation of the Roman Empire in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinople. Additional thousand years until it fell to the Ottoman Empire in 1453. Wikipedia