I've just started reading Christopher Catherwood's book 'Church History'. I love studying church history! I'm barely half a chapter through and excited already!
Catherwood describes how the Roman empire at the time of the early church was so beneficial to the spread of the gospel. With the sheer size of it, making a huge geographical area that can be safely crossed without the need to cross hostile borders; with the logistics of travel being so easy due to the roads built by some of the best road builders the world has ever seen; and with the widespread use of common Greek following the conqueror Alexander the Great - all this meant that the gospel 'reached from Spain in the west to Syria in the east, Macedonia in the north and Etheopia in the south, all by the end of the book of Acts.'
In his providence God had set the pieces carefully in place to enable the rapid spread of his Kingdom! How exciting!