<P> Several other definitions of Eastern Europe exist today, but they often lack precision, are too general or outdated . These definitions vary both across cultures and among experts, even political scientists, as the term has a wide range of geopolitical, geographical, cultural, and socioeconomic connotations . </P> <P> There are "almost as many definitions of Eastern Europe as there are scholars of the region". A related United Nations paper adds that "every assessment of spatial identities is essentially a social and cultural construct". </P> <P> While the eastern geographical boundaries of Europe are well defined, the boundary between Eastern and Western Europe is not geographical but historical, religious and cultural . </P> <P> The Ural Mountains, Ural River, and the Caucasus Mountains are the geographical land border of the eastern edge of Europe . </P>

Where is the dividing line between eastern and western europe
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