Quote Originally Posted by Spartiate
I think they do not become available until the start of the late period.I normally make them available in all periods by editing the unitprod.This isn't cheating as such as you still have a hell of a lot of building to do before you can train the almighty Jannys.I think the year is 1325 or something.
That logic hardly works. If it gives an advantage it's cheating.

Feel free to do it, but that justification doesn't hold up.