Eastern Orthodoxy by country
Based on the numbers of adherents, the Eastern Orthodox Church (also known as Eastern Orthodoxy) is the second largest Christian communion in the world after the Roman Catholic Church. The most common estimates of the number of Eastern Orthodox Christians worldwide is approximately 200–260 million. The numerous Protestant groups in the world, if taken all together, outnumber the Eastern Orthodox, but they differ theologically and do not form a single communion.
Religion in Estonia
Less than a third of the population define themselves as believers; of those most are Eastern Orthodox, predominantly, but not exclusively, among the Slavic minorities, or Lutheran. There are also a number of smaller Muslim, Protestant, Jewish, and Buddhist groups. The organisation Maavalla Koda unites adherents of animist traditional religions (Estonian Neopaganism). The Russian Rodnover organisation "Vene Rahvausu Kogudus Eestis" is registered in Tartu.