Slavs
Slavs can be further grouped by religion. Orthodox Christianity is practiced by the majority of Slavs. The Orthodox Slavs include the Belarusians, Bulgarians, Macedonians, Montenegrins, Russians, Serbs, and Ukrainians and are defined by Orthodox customs and Cyrillic script as well as their cultural connection to the Byzantine Empire (Serbs also use Latin script on equal terms). Their second most common religion is Roman Catholicism. The Catholic Slavs include Croats, Czechs, Kashubs, Moravians, Poles, Silesians, Slovaks, Slovenes, and Sorbs and are defined by their Latinate influence and heritage and connection to Western Europe. There are also substantial Protestant and Lutheran minorities especially amongst the West Slavs, such as the historical Bohemian (Czech) Hussites.
Ukrainian Latin alphabet
The Ukrainian literary language has been written with the Cyrillic script, in a tradition going back to the introduction of Christianity and the Old Church Slavonic language to Kievan Rus’. Proposals for Latinization, if not imposed for outright political reasons, have always been politically charged, and have never been generally accepted, although some proposals to create an official Latin alphabet for Ukrainian language have been expressed lately by national intelligentsia. Technically, most have resembled the linguistically related Polish and Czech alphabets.