A century? Yeah no.
[X] [Metal] Bronze weaponry is introduced as quickly as possible. (Temp Tech---- for 2 Turns, Temp Wealth----, -2 Stability, ???)
Pushing bronze through within a generation now might make it easier to do the same with other reforms in the future, as there's now precedent. I certainly don't want a century to be seen as the standard time for reforms.
[X] [Legacy] Gain the Ancient Bastion of Civilisation (Garthryd) Legacy.
[] [Legacy] Gain the The King Still Stands Legacy.
Our military is already very strong on the defensive and a further boost to defensive wars isn't going to make the difference. A boost to tech is useful for all cases, military, magic, admin, etc.