ᴅᴏᴄᴜᴍᴇɴᴛ: Roman ruler Theodosius II promulgated the Theodosian Code.

ה׳ באדר ד׳קצ״ח5th of Adar, AM 4198

https://thisjewish.day/article/4198-12-05-theodosian-code-promulgated