INTRODUCTION 19 the consequent cessation of all the ritual and cere- monial of worship, reduced the precepts connected therewith to a branch of archeology ; while on the other hand, it increased the need of defining, with the utmost precision the right practice in those matters, so that it might not be forgotten if ever the time should come for the resumption of the Temple services. And, if some are inclined to thin lightly of the time and thought spent upon questions which could have no practical outcome for those who de- bated them, there is still a pathetic and even a heroic aspect in the toil which preserved a sacred memory so that it might keep alive a no less sacred hope. The Mishnah, then, became in its turn the subject of commentary, interpretation and expansion. The name given to this superadded commentary is Gemara, which means ' completion.' But, whereas there is only one Mishnah, there are two Gemaras. The Mishnah was studied not only in the schools of Palestine, but also in those of Babylonia. And by the labours of these two groups of teachers there was developed a Palestinian Gemara and a Babylonian Gemara. In course of time the same need for codification of the growing mass of Tradition began to be felt in regard to the Gemaras which had previously led to the formation of the Mishnah. The Gemara of Palestine was ended,-not com- pleted,-towards the close of the fourth century ; while it was not until the sixth century that the Gemara of Babylonia was reduced to the form in which we now have it. The name Talmud is given to the whole- corpus of Mishnah plus Gemara ; and thus it is usual to distinguish between the Palestinian |