The final step in the particularity of the Greek Catholic Church was the development of the [[Ukrainian language]] from the language of [[Kievan Rus]] between 1600 and 1800, a language that distinguished itself from Belarusian and Ruthenian. | The final step in the particularity of the Greek Catholic Church was the development of the [[Ukrainian language]] from the language of [[Kievan Rus]] between 1600 and 1800, a language that distinguished itself from Belarusian and Ruthenian. |