The 1913 Catholic Encyclopedia says that in what was then known as 'Little Russia' (now Ukraine), the pressure of the Russian Government "utterly wiped out" Greek Catholicism, and "some 7,000,000 of the Uniats there were compelled, partly by force and partly by deception, to become part of the Greek Orthodox Church".
Menurut Catholic Encyclopedia 1913, di wilayah yang masa itu dikenal sebagai 'Rusia Kecil' (sekarang Ukraina), Tekanan pemerintah Rusia "menyapu bersih" umat Katolik Yunani, dan "sekitar 7.000.000 umat Uniat di sana digiring, dengan paksaan maupun muslihat, untuk menjadi bagian dari Gereja Ortodoks Rusia".