Question

which leader emphasised that shine need to moderat
itsey to fight the custom dominations?​

Answer 1

Researches from Great Leaders can be found at the University, which becomes available in the Gunpowder Age. Each research has multiple Chapters each with multiple levels to be researched separately and cost increasing amounts. Researching takes time, requires certain number of available Citizens and requires either Gold, Food, or Oil. Some require earlier research to be completed to at least certain level before it can be started.