I cannot speak for every group that calls itself Christian, but as for Jehovah's Witnesses, we have taken the Truth of God's Kingdom to 235 lands and islands of the sea. According to the Watchtower website, there are witnesses in certain countries where the preaching work is banned, but the preaching work is taking place "underground".
All around the world.
constantine
They were trying to spread Christianty
Christianity can be found today all over the world.
In the 2000 years, Christianity has spread far and wide, it is in all countries today, roughly.
30AD
Jesus Christ
where did Christianity begin?
Saint Paul
christianty
Christianty
Paul started Christianty
The Holy Bible.