Protestantism and Catholicism are both equally the most popular. In southern Europe, Catholicism tends to be more dominant, while in the north, Protestantism is.
Christianity - and the particular denomination is Catholicism
It is Orthodoxal Christianity (like all the eastern Europe.)
It is christianity, but some would claim Islam, but I agree with the first.
There are perhaps hundreds of religions in Southern Europe. The most popular, however, include Christianity, Judaism, and Islam.
The most popular form of government was monarchy, or overall autocracy.
Christianity
Christianity has the most followers in Europe and the Americas. Islam is the second largest religion in these regions.
Christianity
America
The most common religion is Roman Catholicism.(catholic)
the most popular dog breed in Europe is goldenretrever
Christianity is the most widely practiced religion in Europe