Information on Technology and Buildings
From Crusaderkings
Technology (or Advances, in game terms) is represented in Crusader Kings as 30 different fields with 5 levels of development. These 30 fields are grouped into three categories (Military, Economic, and Cultural) and you can research one field from each group at a time. This research only effects your capital, and must spread (occurs automatically through game mechanics) to your other provinces. Likewise, technology may spread into your provinces from neighboring lands or via trade routes. Only capital provinces (those with shields) can discover technologies. All others must receive them by spreading. Capitals may also receive technologies by spreading.
Click here and download the and open zip file for a general overview of the effects and requirements for all the game's buildings and techs. (note that you may need to download a Zip file opener)
