Question

How did Christianity grow into a worldwide religion?​

Answer 1

Because its in our dna. It’s been with us for years. And the signs of the end of the world described in the Bible is coming true. And because of preachers around the world spreading the good news of the Bible.

Step-by-step explanation:

Hope this helps.

Answer 2

One reason being the promise of salvation and eternal life for everyone was an attractive alternative to roman religions a second reason being the stories of miracles and magical healings showed that the christian god was more powerful than many roman gods.