Yarchei Kallah (Hebrew: ירחי כלה 'months of the bride') is the name of a teachers' convention that was held twice a year in Babylonian Academies, by the Jews then in captivity in Babylon, after the beginning of the amoraic period, in the two months Adar and Elul.
[3] Rabbinowitz (1965) cites opinions attributing authorship to either Jehudai Gaon (8th century) or to Eliezer ben Hyrcanus (c.100 CE) with later additions and redaction.
The regular Kallah conventions concerned issues related to marriage, chastity, and moral purity.
The importance of the Kallah Convention (referred to under another name) is extolled in the Midrash Tanḥuma: "God has appointed the two academies ("yeshibot") for the good of Israel.
A. Schwarz[6] claims that this cannot be asserted with certainty, but available historical records show that the Kallah was purely an institution practiced in Babylonia.