The teachers mentioned in the Mishna of Rabbi or in the Boraithoth and Tosephta were called Tanaim (singular Tana) signifying Instructors, Professors. The teachings of the colleges, covering a period of some centuries, which also found adherents and became the traditional law, were called GEMARA, signifying “conclusion.” The intention was to harmonize Mishna and Boraitha, and, in most cases, to arrive at a final decision as to the proper interpretation of the theory of the law (as Rabbi Jo’hanan