Rav Karna
Karna () was a rabbi of Babylonia, of the first generation of amoraim. In the Babylonian Talmud he appears simply as Karna; in the Jerusalem Talmud he is entitled Rav Karna. He was a colleague of Samuel of Nehardea and Rav, and served as a rabbinic judge. The phrase "Judges of the Exile" in the Babylonian Talmud is an epithet attributed to Karna and Samuel of Nehardea. He wrote a compilation of Baraitas to Seder Nezikin, known as "Nezikin of the School of Karna". He made his living from testing wine quality.