Religion in Ukraine
As of 2018, according to a survey held by the Razumkov Center, 71.7% of the total respondents declared to be believers, while 11.5% were uncertain whether they believed or not, 5.3% were uninterested in beliefs, 4.7% were unbelievers, 3.0% were atheists, and a further 3.7% found it difficult to answer the question. A 2018 survey conducted by the Razumkov Centre found that 71.7% of the population declared themselves believers. About 67.3% of the population declared adherence to one or another strand of Orthodox Christianity (28.7% of the Kiev Patriarchate, 23.4% just Orthodox, 12.8% of the Moscow Patriarchate, 0.3% Ukrainian Autocephalous Orthodox Church, and 1.9% other types of Orthodoxy), 7.7% just Christians, 9.4% Greek Rite Catholics, 2.2% Protestants and 0.8% Latin Rite Catholics. Judaism was the religion of the 0.4%; while Buddhism, Paganism and Hinduism were each the religions of 0.1% of the population. A further 11.0% declared themselves non-religious or unaffiliated.
History of Christianity in Ukraine
As the "unia" continued its expansion into Ukraine, its unpopularity grew, particularly in the southern steppes where Dnieper Cossacks lived. The Cossacks valued their traditions and culture saw the "unia" as a final step of Polonization. As a result, they reacted by becoming fierce proponents of Orthodoxy. Such feelings played a role in the mass uprising whose targets included all non-Orthodox religious proponents, the Catholic and Uniate clergy and Jews. During this time metropolitan Mogila took full advantage of the moment to restore the Orthodox domination in Ukraine, including returning one of its sacred buildings, the Saint Sophia Cathedral in Kiev.