Harmony affects the frequency of Varagies while Knowledge can help you combat that. I’ve done my own tests on both to obtain information that isn’t prevalent in the game.
Harmony affects the rate of Minor Varagies in the game but it’s effect on the type of Varagies is unknown. Knowledge, using the Council, can be used to combat or predict Minor and Major Varagies. Throughout my gameplay I noticed odd things about Knowledge and I was curious about what actions affected Harmony so I conducted some tests using custom mode and below are the results.
Traveling Caravan Trading = +30
Traveling Caravan Pupil Trade (requires resources for the trade) = ???
Praying to Scared Site = +50
Destroying a Resource = -20
Plundering a Scared Site = -50
Leaving Behind a Single Resource when Traveling to the Next Halt = -1
Leaving Behind a Mobile Building
Gathering from Protect Resources
Gain 600 knowledge from exploring the entire Halt
Gain 400 knowledge from the “Help” option from a Traveling Caravan if present