When was the Parthian late bodygourd first use, historically?

[athanaric]

Historically, cataphracts armoured like the Late Bodyguards and the Late Armored Elite Cataphracts were not in use until the first centuries AD. Down to the first century BC, all Parthian cataphracts were armed like the Parthian Noble Cataphracts.

Well, that's consolation for me. I'm in 213 now and still no reforms... And in my Pontos campaign they won't happen at all, thanks to Autoresolvus Maximus and the invincible African Pikemen