Original sentence: Its architectural influence extended to the modern states of Russia, Belarus, and Ukraine.Saint Sophia Cathedral in Novgorod (1044-52), on the other hand, expressed a new style that exerted a strong influence on Russian church architecture.Secular architecture of Kievan Rus' has scarcely survived.The great churches of Kievan Rus', built after the adoption of Christianity in 988, were the first examples of monumental architecture in the East Slavic lands.The medieval Kievan state was located south of modern Russia, centered around territory that is now the Ukraine.The status of Kievan Rus' as a precursor state to Russia is a somewhat politically charged issue in the early twenty-first century
Edited sentence: Saint Sophia Cathedral in Novgorod (1044-52), on the other hand, is a purely Russian structure.Secular architecture of Kievan Rus' is scarcely known.The great churches of Kievan Rus', built after the adoption of Christianity in 988, were the first examples of monumental architecture in the East Slavic lands, the territory of modern-day Russia, Belarus, and Ukraine