High Quality Content by WIKIPEDIA articles! Rabbah bar Nachmani (Hebrew: ) (c. 270-c. 330) was a Jewish Talmudist known as an amora, who lived in Babylonia, known throughout the Talmud simply as Rabbah. Rabbah was born into a priestly family, and studied at both the academies in Sura and Pumbedita. He was a great scholar, renowned for his abilities to argue texts, resolve contradictions, and find applications, which gave him the nickname of "oker harim" or 'uprooter of mountains', as the Talmud says that when he was in argument, he got so worked up that he appeared to pick up mountains and grind them against each other. His specialty was the laws of ritual purity, and he was also an exceptional teacher. He used to start every lecture with a joke or funny anecdote to get his students in a good mood.