In the late 1450s, part of the nomadic population, headed by Janibek and Kerei, separated themselves from the rule of Uzbek Khan Abu'l-Khayr.

Kerei received supreme power in eastern Dasht, who appointed his brother Janibek as the ruler of the west wing.

Kerei Khan and his followers fought for the creation of an independent state which developed in political, cultural and economic terms.

Since the end of the 15th century the term "Kazakh" acquired a political character, which was being used to designate individual feudal estates that were created by Kerei and Janibek, and from the beginning of the 16th century, after part of the tribes moved from the modern territory of Kazakhstan headed by Shaibani Khan in Maverannahr, the term began to acquire an ethnic character.

[2] On June 1, 2010, in Astana near the Museum of the First President of Kazakhstan, with the participation of Nursultan Nazarbayev, a monument to Kerei and Janibek was opened by the sculptor Renat Abenov.