followers of the assyrian church of the east, ancient church of the east, chaldean catholic church, assyrian pentecostal church and assyrian evangelical church usually adhere to an assyrianist position, although sometimes the term chaldo-assyrian is used to avoid theological conflict between assyrian followers of the original church of the east and those who broke away between the late 17th and early 19th centuries and entered communion with the roman catholic church, which named this new church the chaldean catholic church in 1830. chaldean catholics should not be confused with ancient chaldeans, a long extinct people with whom they share no links.