This is Part 2 of a series on The Acts. This narrative seeks to bring out the main elements that marked the beginning of the spread of Christianity throughout the world. It begins with the Ascension of Jesus Christ, followed by the divine outpouring of the Holy Spirit at Pentecost. After that, we witness the powerful impact of the Holy Spirit on the apostles and on the fledgling community of believers that was rapidly increasing, spreading Christianity in Jerusalem first and later in other countries.