From Acts 2:5–12 NIV—Now there were staying in Jerusalem God–fearing Jews from every nation under heaven.  When they heard this sound, a crowd came together in bewilderment, because each one heard them speaking in his own language. Utterly amazed, they asked: ‘Are not all these men who are speaking Galileans?  Then how is it that each of us hears them in his own native language?

1. Parthians
2. Medes
3. Elamites
4. residents of Mesopotamia
5. Judea
6. Cappadocia
7. Pontus
8. Asia
9. Phrygia
10. Pamphylia
11. Egypt
12. parts of Libya
13. near Cyrene
14. visitors from Rome (Jews)
15. visitors from Rome (converts to Judaism)
16. Cretans
17. Arabs

we hear them declaring the wonders of God in our own tongues!’ Amazed and perplexed, they asked one another, ‘What does this mean?’

This, of course, is Luke’s account of the Day of Pentecost. You may get the impression from the way the Book of Acts goes on that Peter and John were active at the start and then it was Paul who was at the forefront of missionary activity.  However, historical evidence and traditional stories abound to suggest that, straight after Pentecost, the disciples realised they needed to follow-up the new converts. Within a very short period of time, most of the disciples had dispersed across the known world, taking the Good News with them.

A good introductory book is Elva Schroeder’s Whatever Happened to the Twelve Apostles?