Rav Ashi, according to some opinions, died in 4180 [(see above 4186)]. Rav Yeimar died in 4180 [and in Yuchsin in the generations of Amoraim according to their times it says 4185, but that is a scribal error. And in Sefer HaKeritot it writes the year 845 (i.e., according to the Seleucid era), which adds up to the year 4192, which requires examination.] In the year 4180, all the Jews were expelled from Alexandria of Egypt, and as a result of this, great wars and bloodshed occurred [(Tzemach David, part 2)].