First half of the 17th century. The Great Troubles swept through Rus'; for some time it was not even clear whether the Russian state would remain on the maps. But even in the most difficult times, the new Tsar Mikhail Romanov and his inner circle did not stop thinking about the future of Muscovite Rus'. And the development of the richest region beyond the Ural Stone was considered the most important matter. Detachments of dashing Cossacks and trade expeditions went into the newly opened spaces. Brave pioneers set up forts and trading posts, laid paths and founded cities. And the Russian state expanded, with new rich Siberian lands. For centuries!..