Improves the following:
African Forest Elephant: -25 cost; Battleship: Consumes 1 Iron instead of 1 Oil, upgrades to Missile Cruiser; Great Merchant: +30 Influence; Hakkapeliitta: +3 Strength; ×Maori Warrior: +1 Strength; Barringer Crater: +1 Science, +1 Gold; ×El Dorado: +1 Food; Grand Mesa: +1 Production, +1 Gold; ×Krakatoa: +1 Food; ×Marsh: +2 Food; ×Old Faithful: +1 Happiness, +1 Science; Stone Works: can now also be built on Plains; ×Holy site: +3 Food with a certain Follower Belief; ×Manufactory: +1 additional Production after discovering Chemistry; Pentagon: Free Great General appears, -50% cost of upgrading units ×Great Prophet: can start an 8-turn Golden Age; ×Galleass: can enter Ocean tiles; ×Stonehenge: +1 Faith; Border expansion moved from Ankor Wat to Terracotta Army; Angkor Wat: Provides free university, -25% cost of faith purchasing; Germany and Ottomans: recruit barbarian with 100% change; ×Christo Redentor: culture discount increased to -15%; Scholasticism: 50% science from CS; Religious Victory added; Byzantium: earn faith equal to 25% of killed military unit's strength; Spain: remove gold boost; Longhouse: +10% production; Horse Archer: add horses requirement Samurai: Mobility instead of Shock I Papal Primacy: increase resting point by 20 instead of 15 Piety and Rationalism no longer exclude each other, and Piety available in Ancient era Collective Rule: swapped places with Republic Reformation: now provides free belief and free great prophet Free Religion: -10% culture cost replaced by old Reformation bonuses Professional Army: provides happiness for XP buildings instead of defensive buildings Military Tradition: +50% Great General generation Trade Unions: +1 Gold from every Lighthouse Mandate of Heaven: +1 Happiness from Shrines, Temples