This episode traces the rise, expansion, and collapse of the Russian Empire, one of the largest land-based empires in human history. Emerging from the medieval state of Muscovy after centuries under Mongol dominance, Russia began its imperial journey by centralizing power and expanding relentlessly across Eurasia.Under Ivan the Great, Moscow asserted independence from Mongol rule and embraced the idea of Russia as the "Third Rome." His successor, Ivan the Terrible, formally crowned himself Tsar and launched aggressive expansion eastward, conquering the Volga region and opening the path to Siberia. Russian explorers, soldiers, and traders pushed across vast, frozen lands, eventually reaching the Pacific Ocean and creating a contiguous empire spanning eleven time zones.The empire was radically transformed by Peter the Great, who modernized Russia by adopting Western military, administrative, and cultural practices. He founded St. Petersburg as a new capital facing Europe and secured Russia's status as a great power. Later, Catherine the Great expanded imperial territory further into Eastern Europe and the Black Sea region, while ruling through absolute authority despite Enlightenment influences.By the 19th century, the Russian Empire ruled a diverse population but remained socially rigid. Serfdom, economic inequality, and political repression weakened the state from within. Military defeats, delayed industrialization, and growing revolutionary movements exposed deep structural flaws.The pressures of war, poverty, and unrest culminated in the Russian Revolution of 1917, forcing Tsar Nicholas II to abdicate and ending over three centuries of Romanov rule.The Russian Empire left a powerful and complex legacy—shaping Eurasian geopolitics, fostering rich cultural traditions, and establishing a model of centralized authority that would influence Russia's future. Its fall demonstrated that vast territory and military power could not compensate for internal inequality and resistance to reform.