As an introduction to early church history, this book is not intended to cover any subject exhaustively. Its goal is to provide an overview of the most significant leaders of the church while adding stories of ordinary Christians who remained faithful to the Lord in the face of persecution. It will introduce readers to how the church, in its first five centuries, sought to answer the primary theological questions of the day. This book is meant to whet the appetite of those who have never read early church history and refresh the minds of those who have. For some, the reading of this book will be the beginning of a journey that will lead to a deep and abiding love for the history of God's sovereign working in the church and in the world.