[masraum]

Originally Posted by unclebilly

How do you figure that 33 are Christian?

Presumably, he didn't figure anything. I suspect he found this list somewhere and did a copy paste.

It's not terribly surprising, really. There's lots of Christians, they are everywhere. Remember besides all of the other groups, the Catholics have been around for ~1800 years, and for a bunch of that time, they were actively traveling the globe to find new members. Many/most other Christian groups do the same to some extent.

And if you're thinking that Islam should be far ahead of Christianity, according to history.com

Islam is the second largest religion in the world after Christianity, with about 1.8 billion Muslims worldwide. Although its roots go back further, scholars typically date the creation of Islam to the 7th century, making it the youngest of the major world religions.

The a page on same site puts Christians ahead, but only by 10%, not 33%. Based on those numbers, that site thinks that there would be 26 Christians and 23 Muslims.

Christianity is the most widely practiced religion in the world, with more than 2 billion followers. The Christian faith centers on beliefs regarding the birth, life, death and resurrection of Jesus Christ. While it started with a small group of adherents, many historians regard the spread and adoption of Christianity throughout the world as one of the most successful spiritual missions in human history.

Wikipedia puts it at 31 and 25

https://en.wikipedia.org/wiki/List_of_religious_populations

I saw a couple of other sites that put the numbers at 31 and 23.

I assume that it's a really hard figure to determine, and lots of guessing and probability is involved.

Only the Lord really knows.