In the "Encyclopedia of Appalachia" (2006), Appalachian State University historian Howard Dorgan suggested the term "Old Appalachia" for the region's cultural boundaries, noting an academic tendency to ignore the southwestern and northeastern extremes of the ARC's pragmatic definition. Sean Trende, senior elections analyst at "RealClearPolitics", defines "Greater Appalachia" in his 2012 book "The Lost Majority" as including both the Appalachian Mountains region (western Virginia and North Carolina, the Piedmont region in western South Carolina, West Virginia, southern Ohio, the Cumberland Plateau in eastern Kentucky, East Tennessee, northern Georgia, Alabama, and Mississippi) and the Upland South (southern Indiana and Illinois, the Bluegrass, Mississippi Plateau, Western Coal Field, and Jackson Purchase regions in central and western Kentucky, Middle and West Tennessee, Missouri, the Ozarks in Arkansas, Little Dixie and Southwestern Oklahoma, North and East Texas, and the Texas Hill Country) following Ulster Protestant migrations to the Southern and Midwestern United States in the 18th and 19th centuries.