Born in Tulsa, Oklahoma, Roberts Liardon is a leading Protestant church historian. He founded Roberts Liardon Ministries, along with Embassy Christian Center, Embassy Ministerial Association, Spirit Life Bible College, and Operation 500. He also founded the Reformers and Revivalists Historical Museum. At seventeen, Liardon published his first book, I Saw Heaven, which sold over 1.5 million copies and catapulted him into the public eye. To date, Liardon's books, including the God's Generals series, have sold over 15 million copies worldwide and have been translated into more than sixty languages. Liardon's DVD series God's Generals became one of the bestselling Christian DVD series in history. Having ministered in over 125 countries to members of the public and to world leaders, Liardon is also recognized internationally. In addition to being an author and a church historian, he is a public speaker, a spiritual leader, and a humanitarian. Liardon continues to manage and expand his international headquarters in Sarasota, Florida, and his office in London, England.