In today's society, there are too few real Christians to label it to countries. Really, any country can be any religion. I'd say some good Christian countries are Canada, The United States, El Salvador, maybe some Romanians, and some of the more isolated places of China or jungles where missionaries reach out to.
No. All of those countries are Christian-majority countries.
Countries that have a Christian background
No. Christmas is a Christian holiday. And not every country is mostly Christian.
They are all sovereign states, democracies, western countries, European countries, Western European countries, all bordered by the Atlantic ocean, and all mainstream Christian religion.
Rome, England, and all the rest of the christian countries/empires.
Countries like Germany, UK accepts christian refugees. But not limited to them only.
That is a very intelligent question! Typhoid disappeared from all the developed countries by 1940 by improved sanitation and good personal hygiene. Incidentally they were all Christian countries. Typhoid was rampant in developing countries by that time.
Nearly all Christian countries have patron saints. There are a few countries that have Islam as a state religion and they do not recognize Catholic saints so have no patron. Saudi Arabia is an example.
Countries that have a Christian population have Christmas celebrations. Even countries that do not have a large Christian presence are falling into line with the marketing aspects of the the Christmas season.
The continents of North America, South America, Europe, and Australia are predominately Christian. Africa also boasts a large Christian population, and the majority of African countries are predominately Christian, however, the Islamic nations of Africa have a larger population than these countries combined. Asia also has a somewhat large Christian population.
Romanies living in Christian countries, most likely celebrate Easter.
Many, many countries are predominantly Christian, but Christians exist all over the world today - there being some even in what are thought of as "Muslim" countries.