From The Gates of Europe: A History of Ukraine, by Serhii Plokhy (Basic Books, 2017), Kindle pp. 178-179:
THE COSSACK HETMANATE, which survived under the suzerainty of the Muscovite tsars only on the Left Bank of the Dnieper, served as a construction site for a number of nation-building projects. One of them, closely associated with the name “Ukraine” and a view of the Hetmanate as a distinct Cossack polity and fatherland, became the foundation for the development of modern Ukrainian identity. Another, associated with the official Russian name of the Hetmanate, “Little Russia,” laid the basis for what would later become known as “Little Russianism,” the tradition of treating Ukraine as “Lesser Russia” and the Ukrainians as part of a larger Russian nation.
Both intellectual traditions coexisted in the Hetmanate before the last major Cossack revolt, led by Hetman Ivan Mazepa in 1708. Mazepa’s revolt targeted Muscovy and the official founder of the Russian Empire, Tsar Peter I. It ended in defeat as the Russians overcame the Swedish army, which Charles XII led into Ukraine. The Battle of Poltava in 1709 profoundly changed the fate of the Cossack Hetmanate and Ukraine as a whole. The loss for Charles was a double loss for Mazepa and his vision of Ukraine as an entity separate from Russia. In subsequent years, the Little Russian interpretation of Ukrainian history and culture as closely linked to Russia would become dominant in the official discourse of the Hetmanate. The idea of Ukraine as a separate polity, fatherland, and indeed nation did not disappear entirely but shifted out of the center of Ukrainian discourse for more than a century.
Far Outliers 