Jesus in the Talmud
In the first few centuries CE, there were many sects of Judaism (such as Pharisees, Essenes, and Sadducees) each claiming to be the correct faith. Some scholars treat Christianity, during that era, referred to as Early Christianity, as simply one of many sects of Judaism. Some sects wrote polemics advocating their position, and occasionally disparaging rival sects. Some scholars view the depictions of Jesus in the Talmud as a manifestation of those inter-sect rivalries – thus the depictions can be read as polemics by the rabbinic authors of the Talmud which indirectly criticized the rival sect (Christianity), which was growing and becoming more dominant.
Jewish ethnic divisions
Smaller Jewish groups include the Georgian Jews and Mountain Jews from the Caucasus; Indian Jews including the Bene Israel, Bnei Menashe, Cochin Jews and Bene Ephraim; the Romaniotes of Greece; the ancient Italian Jewish community; the Teimanim from the Yemen; various African Jews, including most numerously the Beta Israel of Ethiopia; the Bukharan Jews of Central Asia; and Chinese Jews, most notably the Kaifeng Jews, as well as various other distinct but now extinct communities.