The history of eastern European is dominated by the story of the rise of the Russian empire, yet Russia only emerged as a major power after 1700. For 300 years the greatest power in Eastern Europe was the union between the kingdom of Poland and the grand duchy of Lithuania, one of the longest-lasting political unions in European history. Yet because it ended in the late-eighteenth century in what are misleadingly termed the Partitions of Poland, it barely features in standard accounts of European history.