Black Judaism
Black Judaism is the collective term used to describe sects of Judaism predominantly practiced by the members of the African communities, both within the African Continent and outside Africa (such as North America). It is theologically characterized by the selective acceptance of the Judaic faith (in some cases such selective acceptance has historical circumstances), and that the belief system of Black Judaism is significantly different from the mainstream sects of Judaism. In addition, although Black Judaic communities adopt Judaic practices such as Jewish holidays and Jewish prayers, they are generally not recognized by the mainstream Jewish societies as legitimately Jewish.
Sect of Skhariya the Jew
In the early 19th century, a number of communities appeared in Tula, Voronezh and Tambov, which followed Jewish traditions and halacha. They were also called "zhidovstvuyuschiye" and were persecuted severely in the times of Nicolas I. Since the beginning of the 20th century, they have been also called "iudeystvuyuschie", from "iudeystvo", a neutral term for the Jewish religion. Now they are generally considered a part of Jewish people (although with no real Israelite descent) and some of them have immigrated to Israel. These groups, however, are not linked to the teaching of Skhariya.