ca. 470

[Possible/Probable] Edict to Close Synagogues and Study Houses issued by King Firuz [Persia; Present-day Iran] 

Commentary from other sources:
1) King Firuz (Pheroces/Peroz) (r. 457-484) added to the edicts of Jezdegerd II, by closing synagogues and study houses.

“470 RAV HUNA V EXILARCH EXECUTED (Persia);” jewishhistory.org