Age of Strategy Forums

When building tech's like "Persuasion" do you have to do it more then once in a single game or campaign? For example in the campaign "Revolution/Attack?"
Does every church have to build this tech or does once work for all?
Also.
Does it last the entire battle or only so many moves? Lastly, if you build more priest after creating persuasion, will it increase their ability as well?

You only have to make the tech in one of the producing buolding (church, Tc, baracks)
It lasts for the entife game, and all units on the map and the nes recruits will have it.

Yes, but some of them (which have an effect on certain buildings)like Church To Cathedral need to be done in each Church.
So if in 1 church only you do that research then only that one church will become Cathedral.

Seems like that paper was burnt 10 times a day,
but only 5 times in 3 years