We have discovered:
What shall we begin researching next, Gi?
Science
available
(19) Theology: ENABLES Theocracy, BUILD Sistine Chapel, Crusade, Christianity
(25) Machinery: BUILD Windmill & Watermill, Leonardo's Workshop REVEALS Cotton
(14) Compass: BUILD Harbor, Magellan's Voyage
(8) Improved Farming: REVEALS Olives, salt, Potatoes BUILD Aqueduct
(6) Calendar: Centers World Map, BUILD Plantation
(11) Literature: BUILD Heroic Epic, National Epic, the Great Library
(11) Drama: ADJUST culture Rate, BUILD Theatre, Globe Theatre
(13) Currency: +1 Trades route per city, ENABLES Gold trading via diplomacy, BUILD Mercat Cross, Grocer, Wealth
(13) Construction: ENABLES Bridge Building, BUILD Colloseum, Brewery, Tavern