" THE COSSACK UPRISING that began in the spring of 1648, known in history as the Great Revolt, was the seventh major Cossack insurrection since the end of the sixteenth century. The commonwealth had crushed the previous six, but this one became too big to suppress. It transformed the political map of the entire region and gave birth to a Cossack state that many regard as the foundation of modern Ukraine. It also launched a long era of Russian involvement in Ukraine and is widely regarded as a starting point in the history of relations between Russia and Ukraine as separate nations. "

― Serhii Plokhy , The Gates of Europe: A History of Ukraine