Crop Rotation
Requires Crop Diversification
Allows Advanced Farms
Naval Engineering
Requires Navigation, Engineering, Sailing
Allows fishing boats adjacent to shore
Allows Cog
Allows Caravel
Metallurgy
Requires Iron Working
Allows Smelter
Warhorses
Requires Horseback Riding, Military Tradition
Allows Warhorses
Law Enforcement
Requires Code of Law
Allows Police Station
Academics
Requires Education
Allows Academy
Taxation
Requires Code of Law, Currency
Eliminates upkeep of size 5 colonies
Mechanics
Requires Engineering
Allows Windmill
Sanitation
Requires Engineering
Allows Sewer
Armorcraft
Requires Military Tradition
Allows heavy metal armor, light metal armor
Longbows
Requires Military Tradition
Allows longbows
Siege Engineering
Requires Military Tradition, Engineering
Allows Ballista
Naval Artillery
Requires Maritime Warfare, Siege Engineering
Allows Naval Catapult, Naval Ballista
Spirit-calling
Requires Spirit-warding
Allows Phantom-calling Censer
Evocation
Requires Energy Magic
Allows Blasting Staves
Animation
Requires Matter Magic
Allows Stone Shamblers
Divination
Requires Mind Magic
Allows Watchwards
Wind Magic
Requires Ephemera Magic
Allows Windcaller Sails
Body Enhancement
Requires Body Magic
Allows Power Gauntlets
Enfeebling
Requires Body Magic
Allows Exhaustion Orbs
Sorcery
Requires Magecraft, any three other magic techs
Allows Sorcerors
Infusion
Requires Enchantment
Allows Flaming weapons, Windbound shields, Water-kissed armor
?
Ljus Faller only
?
Accellerated Mobilization
Ser'kash only
Immediately recieve Military Tradition, Armorcraft
Gifted Explorers
Sidamaru only
Cartography units can map two squares/turn
Expansionism
Sunstone only
Colonies grow slightly faster
Study of Labor
Xeniice only
Unlock Mind Magic, Matter Magic, Animation