*180 [[Irenaeus of Lyons]] writes ''Against Heresies'' ; Saint Dyfan first martyr in British Isles (at Merthyr Dyfan, Wales); death of [[w:Scillitan Martyrs|Scillitan Martyrs]] in North Africa.
*180-192 [[w:Theodotion|Theodotion's]] Greek translation of the [[Old Testament]].
*190 [[Pantaenus]] founds the [[
Alexandrian school|Catechetical School at Alexandria]].
*193-211 [[w:Symmachus the Ebionite|Symmachus']] Greek translation of the [[Old Testament]].
*195 Bishop Saint Elvan dies at Glastonbury.