Book excerpt: During the course of most of Russia's turbulent history, czars ruled. The story of these men and women - as diverse as the lands they governed - is, in many ways, the story of Russia itself. From the birth of the Kievan state in the second half of the ninth century to the murder of Czar Nicholas II and his family in 1918, historians James P. Duffy and Vincent L. Ricci trace the long and twisted line of imperial rule in Russia, offering many insights into the uses and abuses of absolute power, as well as a glimpse at world history through the eyes of those who made it. The Czars is a vital page in the literature of Russian history.