I've already found quotes for all the techs, searching in the PDFs of the books, but many of them are not very good... The list of the techs is, by age (I think it's not complete, but most of them are here. I'll see if I can take screens of the complete tech tree this weekend):
AGE OF THE STARS
Mining, Copper Working, Bronze Working, Jewelry, Wood Working, Fishing, Sailing, The Runes, Farming, Domestication, Hunting, Fortification
FIRST AGE OF THE SUN
Archery, Iron Working, Steel Working, Masonry, Chain Mail, Weaponry, Professional Armies, Mounted Combat, Siege Warfare, Tradition Keeping, Poetry, Music, Monarchy, Trade, Heraldry, Diplomacy, The Court, Infantry Tactics, Horseback Riding, Stone Working, Cavalry Tactics, Smithing, Ship Building
SECOND AGE OF THE SUN
Chivalry, Pole Weapons, Navigation, Naval Warfare, Construction, Mithril Working, Sharpshooting, Strategy, Composed Armies, Outposts, Trade Posts, Healing, Vassalage, Migration, Long Swords, Battle Axes, Fortresses, Improved Warfare, Literature, Commerce, Treaties, Council of Wises, Improved Smithing
THIRD AGE OF THE SUN
Advanced Smithing, War Hammers, Weapon Mastery, Longbows, Superior Pole Weapons, Swordsmanship, Advanced Siege Warfare, Ballistics, Engineering, Military Training, Horsemanship, Naval Tatics, Signal Fires, Exploration, Alliances, History, Great Trade Routes, Currency, The Wizards, The White Council, Stewardship, Total War
FOURTH AGE OF THE SUN
Crossbows, Trebuchets, Plate Armor, Machines, Feudalism, The Peace, Age of Men (Future Tech)