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.
Russia
Traced back to the Christianization of Kievan Rus' in the 10th century, Russian Orthodoxy is the dominant religion in the country; smaller Christian denominations such as Catholics, Armenian Gregorians and various Protestant churches also exist. The Russian Orthodox Church was the country's state religion prior to the Revolution and remains the largest religious body in the country. An estimated 95% of the registered Orthodox parishes belong to the Russian Orthodox Church while there are a number of smaller Orthodox churches. However, the vast majority of Orthodox believers do not attend church on a regular basis. Easter is the most popular religious holiday in Russia, celebrated by a large segment of the Russian population, including large numbers of those who are non-religious. More than three-quarters of the Russian population celebrate Easter by making traditional Easter cakes, coloured eggs and paskha.