Date for Teppo guys?

[Xehh II]

Is there a set year where you can start recruiting teppo?
I've built the hojutsu? dojo that says you can recruit portugese teppo but I can't.

[Puzz3D]

Teppo can be built starting in 1545.

[Xehh II]

Oh, lol, I seem to be 50 years off, silly me.