The Assemblies of God, one of America’s largest and fastest-growing denominations, celebrated its 100th birthday this year. Almost all of its growth has come from ethnic minorities, who compose more than 41 percent of its 3.1 million American adherents. But on many national survey reports of religious Americans, those nearly 1.3 million evangelicals are invisible because they are not white. Major survey organizations such as Pew Research Center, Gallup, and Public Religion Research Institute often split non-Catholic Christians into the historical categories of black Protestants, mainline Protestants, and white evangelicals.