peer reviewedSchool segregation continues to be understood as legitimate in Germany. To explain why, we chart the development of the learning disability discourse and the special education profession, providing insights into the ongoing expansion of segregated special schooling. The discourse analysis of articles published between 1908 and 2004 in the special education professional association journal, Zeitschrift für Heilpädagogik, uncovers the knowledge base of special education that led to the rise of its main category, ‘learning disability,’ and school type, the support school (then: Hilfsschule, now: Förderschule). Despite critical junctures over the twentieth century, special education’s dominant discourse and school structures exhibi...