Religion in South Sudan in the context of "Christianity in Sudan"

Christianity in Sudan has a long and rich history, dating back to the early centuries of the Christian era.Ancient Nubia was reached by Coptic Christianity by the 1st century.The Coptic Church was later influenced by Greek Christianity, particularly during the Byzantine era. From the 7th century, the Christian Nubian kingdoms were threatened by the Islamic expansion, but the southernmost of these kingdoms, Alodia, survived until 1504.

Southern Sudan (including what is now South Sudan) remained long dominated by traditional (tribal) religions of the Nilotic peoples, with significant conversion to Christianity during the 20th and 21st centuries.