Now I think about it twice very similar proposition would be political victory. Like communist world revolution.
It is in fact the 3rd Russian UHC.
URVs are in fact in the game.
The spanish 3rd UHC is the christian URV.
The arabian 3rd UHC is the muslim URV.
The thibetan 3rd UHC is the budhist URV.
Indians are the only who would like to win a hindu URV.
Persians are the only who would like to win a zoroastrian URV.
Thaoism is out of question.
I propose:
Catholic URV:
*Build 3 catholic cathedrals by 1200AD.
*Spread catholicism to 65% by 1700AD.
*Make sure there are no protestant civs in the world in 1700AD.
Orthodox URV:
*Control Hagia Sophia, the Apostolic Palace, the Church of the Holy Sepulchre and in 1000AD.
*No catholic civs in 1500AD.
*Make sure that orthodoxy is present in every european city, in Morocco, in Egypt, in Levant, in Ethiopia, in middle east, in India, in China, in Japan and in Americas by 1900AD.
Protestant URV:
*Make sure 60% of European cities have protestantism in 1700AD.
*Make sure that the first civ to discover Liberalism, Economics and Democracy is protestant.
*Spread protestantism in every city in North America by 1900AD.
Muslim URV:
*Every city in Africa and Asia, apart from Siberia, China and eastern than China, has only Islam by 1300AD.
*Make sure that there are over 40 islamic temples in the world by 1300AD.
*Make sure that 40% is muslim in 1300AD.
Budhist URV:
*Spread Budhism to every Asian city eastern than Lahore by 1200AD.
*Spread Budhism at 35% or more by 1500AD.
*Make sure there are over 15 budhist monasteries in the world by 1900AD.
Confucian URV:
*Make sure that a confucian civilization is the first to discover Printing Press.
*Make sure that Mongols are dead by 1500AD.
*Be the first in score by 1900AD.