Analysis of information sources in references of the Wikipedia article "Ortodoksi Timur" in Indonesian language version.
About one-third of the world's population is considered Christian and can be divided into three main branches: (1) Roman Catholicism (the largest coherent group, representing over one billion baptized members); (2) Orthodox Christianity (including Eastern Orthodoxy and Oriental Orthodoxy); and (3) Protestantism (comprising many denominations and schools of thought, including Anglicanism, Reformed, Presbyterianism, Lutheranism, Methodism, Evangelicalism, and Pentecostalism).
Byzantine Christianity originated in the Eastern Roman Empire where it evolved concurrently with the emerging Byzantine state. It was the dominant form of Eastern Christianity throughout the Middle Ages and during this period it developed a complex theological system with unique spiritual practices. Byzantine Christianity's fortunes were in many ways tied to the Byzantine state, because when the empire experienced expansion and heightened influence so did the faith. [...] Although the empire eventually fell under the weight of centuries of Islamic aggression, much of Byzantine Christianity has survived in the modern Eastern Orthodox churches.
