SOCIO-CULTURAL FOUNDATIONS

Number of subperiods - 9:

1. From ancient times up until mid IX century AD

2. From mid IX until mid XI century

3. From mid XI until early XIV century

4. From early XIV century until 1650-s

5. From 1650-s to 1772

6. From 1772 to 1795

7. From 1795 to 1920

8. From 1920 to 1991

9. From 1991 and for some future

XI. Urals region

Number of cycles - 2

Number of subperiods -

1st cycle - 2 subperiods:

1. From ancient times up until XII - XIII centuries

2. From XII - XIII centuries until 1480-s

2nd cycle - 6 subperiods:

1. From 1480-s to 1572

2. From 1572 to 1700

3. From 1700 to 1870-s

4. From 1870-s to 1917

5. From 1917 to 1991

6. From 1991 and for some future

XII. Trans-Volga region

Number of cycles - 2