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.
Jewish religious movements
Most streams of modern Judaism developed from the Pharisaic movement, which became known as Rabbinic Judaism (in Hebrew "Yahadut Rabanit" - יהדות רבנית) with the compilation of the Oral Torah into the Mishna. After the destruction of the Second Temple and the Bar Kokhba revolt the other movements disappeared from the historical record, yet the Sadducees probably kept on existing in a non-organized form for at least several more decades. A scholar named Rodkinson claimed about a century ago that the Sadducees ultimately changed their name and are those who are referred to as the "Qara'im" and "Ba`alei Miqra" in the Talmud.