Who was the first leader of military expedition sent by Russian Empire?

How many groups was the population of Central Asia divided into at the beginning of the first millennium?

Which states were great in the VIII-VII centuries AD in country?

3.Which state was located south-east from the Caspian Sea, on the territory of today Turkmenistan, and a part of northern Iran?

4.How many parts was Nisa divided into, and which were they?

5.Since what century Kangju was existed as an independent state?

6.Which state is presently in the Ferghana Valley, plus included Andijan and Namangan?