When did Roman Archers start utilizing a Thumb Draw?

For additional information, I would recommend these videos:
- The Historian's Craft, "How Barbarized was the Late Roman Army? Weapons Burials, Barbarian Influence, & Militarization"    • How Barbarized was the Late Roman Arm...  

- The Historian's Craft: "The Late Roman Army, Part I":    • Видео  

- Ryddragyn, "Sarmatian Thumb Ring Review"    • Sarmatian Thumb Ring Review  

Links to Available Roman, Byzantine and Sarmatian Thumb Rings:

'Byzantine' from Custom Thumb Rings: https://www.customthumbrings.com/shop...

'Sarmatian' from Custom Thumb Rings: https://www.customthumbrings.com/shop...

My thumb ring: 'Archer's thumb ring (medium) by HopkinsForge: https://www.etsy.com/listing/86983755...