Religiously and culturally, the Slavs fall into two main groups—those traditionally associated with the Orthodox Eastern Church (the Great Russians, most of the Ukrainians, some of the Belorussians, the Bulgarians, the Serbs, and the Macedonians) and those historically affiliated with the Roman Catholic Church (the West Slavs, most of the Belorussians, some of the Ukrainians, and the Croats and Slovenes). The cleavage into Eastern Church and Western Church is symbolized by the use of the Cyrillic alphabet by the first group and of the Roman alphabet by the latter.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.