Reference
Exactly what Spanish can train, build and research, by age.
Gunpowder and Monk civilization
•Builders work +30% faster
•Receive +20 gold for each technology researched
•Blacksmith upgrades cost no gold
•Gunpowder Units attack +18% faster
Team bonusTrade Units generate +25% gold
53 units · 29 buildings · 78 technologies. Each building carries what it trains and researches; upgrades sit under what they upgrade from.