Depending on what theories you believe, this challenge may have been accomplished IOTL. However, your challenge is to make it happen unambiguously.
Assuming butterflies don't take him out... you can't see Trajan having a go?Easiest way , big storm when the 2nd invasion of Britain is launched. Loss of large portion of the fleet with none reaching Britain. Lots of people will say its the Will of the Gods and Claudius will not risk another try ( main purpose of the 2nd invasion was to give Claudius a Triumph ). After that Rome will probably distract itself for long enough that the expansion phase passes.
Trajan will still go for Dacia to shorten the borders and after that his focus seems more on the East than the West. I just cannot see him going for Britain as its not likely to be raiding the Empire and its not rich enough. We have 14 legions on the Danube after Dacia is incorporated and he seems to be looking at Parthia (OTL his final campaign ) , so its hard to imagine where the troops would come from for a British adventure in any case.Assuming butterflies don't take him out... you can't see Trajan having a go?
I see no reason why they wouldn’t be ableCouldn't Ireland oppose Christianization untill Late Medieval period the way Prussians and Lithuanians did?
Paradoxically the way to do that might be by having the Romans be more successful, enough so to launch a proper invasion of Hibernia. The invasion gets bogged down, though, and as a result it gets fierce and the Irish grow to hate Rome and its cultural exports, including Christianity.Couldn't Ireland oppose Christianization untill Late Medieval period the way Prussians and Lithuanians did?
Have Druid religion being codified in a script in Antiquity spreading to all Celtic realms, from Hibernia to Galatia, from Iberia to Norricum. Maybe a Celtic Bible in Greek letters is the best solution. A Druid Bible and a reformed Celtic faith. Maybe connect it with a common Celtic language codified with the Greek alphabet.Depending on what theories you believe, this challenge may have been accomplished IOTL. However, your challenge is to make it happen unambiguously.
You are dealing with a culture where the underlying religious tradition is fundamentally hostile to the written word. Druids didn't operate like that.Have Druid religion being codified in a script in Antiquity spreading to all Celtic realms, from Hibernia to Galatia, from Iberia to Norricum. Maybe a Celtic Bible in Greek letters is the best solution. A Druid Bible and a reformed Celtic faith. Maybe connect it with a common Celtic language codified with the Greek alphabet.
This involves a Rome Screw... but the real question becomes "which Rome screw?" Because screwing Rome too hard arguably stops you getting a medieval era as we know it.
The easiest POD (to a degree that constitutes cheating) is kill off Patrick, since that keeps Druids in Ireland past A.D. 476... the technical start of the medieval era.
I'm not sure that's the biggest problem- the Vedas for example go on for a bit about how no one who knows how to write or has ever read anything is pure enough to recite the Vedas, but that didn't stop Hindus from writing down the earliest surviving Indo European prose, and in early Islam as well they were pretty opposed to actually writing down any hadiths as they thought that was an immoral way of memorising them.You are dealing with a culture where the underlying religious tradition is fundamentally hostile to the written word. Druids didn't operate like that.
Anything like this...just butterflies the Medieval Ages.Make Vercingetorix defeat Caesar?
You are dealing with a culture where the underlying religious tradition is fundamentally hostile to the written word. Druids didn't operate like that.
An exiled Irish prince apparently spent some time with Agricola, at least according to Tacitus, so maybe they back a losing horse at some point and the Irish start resenting Roman interference in their affairs.Paradoxically the way to do that might be by having the Romans be more successful, enough so to launch a proper invasion of Hibernia. The invasion gets bogged down, though, and as a result it gets fierce and the Irish grow to hate Rome and its cultural exports, including Christianity.