About 2,000 years ago, a movement was born that literally changed the course of human history. Starting with a prayer meeting of 120 followers of Jesus, Christianity spread throughout the Middle East, Europe, into Africa, Asia, South America, and around the world. Today, over 2 billion people confess to follow Jesus—almost 1/3 of the entire human population! What is this unstoppable movement all about? What does it mean to be a follower of Jesus? Where are we going next? That’s what the Book of Acts is about, and that’s what we’ll discover as we study this incredible story of the first Christians and the first churches in history.