Histologic findings. A single case series of 8 patients who had undergone coccygectomy (surgical removal of the coccyx) revealed that in 5 patients, the main histologic change was disc degeneration at the sacrococcygeal joint; the surgical outcome was poor in all 5 patients.
 Isaac's son Jacob, later called Israel,  and Jacob's 12 sons who founded the twelve tribes of Israel. Abraham, Isaac and Jacob, known as the Patriarchs, are both the physical and spiritual ancestors of Judaism. They founded the religion now known as Judaism, and their descendants are the Jewish people.f course, technically, it is incorrect to refer to Abraham, Isaac and Jacob as Jews, because the terms Jew and Judaism were not used generally to refer to this nation until hundreds of years after their time; nevertheless, for convenience and in accordance with common practice, I will use these terms.
The Great Eastern Schism is the name given to the separation of the Roman and Byzantine branches of the Christian church. This separation of the Latin and Greek churches is sometimes dated from 1054, the date when Byzantine and Roman officials excommunicated each other.