Writing pamphlets by hand can get very tiring and boring after a while, so a group of priests adopted the way of block printing, a means of reproducing texts quicker. Conversions can thus be undertaken quicker and, in this case, from further away.
Researched at: Church
Cost: 200 Florins
Effect: Priests, Missionaries +3 range. Note: this also applies to Beguines, but not to Carroccios.