CEVAP:

The social upheavals between the 16th and 17th century include the shift from the Rurik to the Romanov dynasty, a lengthy war with the Polish- Lithuanian Commonwealth and the beginning of the Russian exploration of Siberia. The period between the demise of Feodor, the last Czar of the Rurik dynasty, in 1598 and the accession to the throne of Michael Romanov in 1613 is called the Time of Troubles.