heads of these schools, were recognized as the highest authorities in Jewish law. Despite difficulties that hampered the irregular communications of the period, Jews who lived even in most distant countries sent their inquiries concerning religion and law to these officials in Babylonia. It was common for Jews outside of Babylon to ask to be sent a section of the Talmud along with “its explanation” or to ask the scholars in Babylon to settle Jewish arguments for which they could not find any precedent. The length of a responsum from this period can span from less than a sentence to a large book. Many of the responsa are still being studied today in the Cairo Genizah. In the yeshiva during this time period, students and scholars would discuss these halakhic questions during kallah and then the head of the yeshiva would announce his decision and the leaders in the yeshiva would sign it. Another type of responsa were those that were more time-sensitive, so the gaon usually responded to them right away and with many different sections in order to answer multiple questions that were posed. Later Geonim also referred to the responsa and commentaries of earlier Geonim when writing responsa. Later in the geonic period (from the mid-tenth to mid-eleventh centuries), their supremacy suffered, as the study of the Talmud received care in other lands. The inhabitants of these regions gradually began to submit their questions to the heads of the schools of their own countries. Eventually they virtually ceased sending questions to Babylonian Geonim, so that during this period responsa of eminent rabbis of other lands appeared side by side with geonic rulings. Rishonim The period of the rishonim, or the First Rabbinic Epoch, primarily consists of the writings from 11th and 12th century Spanish and French schools. With the decline of the gaonate in the first half of the eleventh century, it ceased to be seen as the central spiritual authority for Jews worldwide. From then on, questions were sent to the rabbinical authorities of one's own or a neighboring country. Thus, inquiries sent during this period to Babylonia were rare and exceptional. Characteristics The questions were not all practical. Many were theoretical, concerning the correct interpretation of a halakic or haggadic passage in the Talmud. In their discussion of theoretical problems, the responsa of Spanish scholars are noteworthy for the untrammeled scientific spirit that permeates them,