This article is considered accurate for the current version of the game.
Kanun-i-Esasi (English: Basic Law or other wise known as the Ottoman constitution) is a decision available to the Ottoman Empire. It enacts the first The first Ottoman constitution of 1876
The requirements are that The Ottoman Empire have researched Nationalism and Imperialism.
The Ottoman Empire gains 5 Prestige and all pops lose 3 militancy, but they will gain 1 Consciousness.