A syllabus or specification is a document that communicates information about an academic course or class and defines expectations and responsibilities. It is generally an overview or summary of the curriculum. A syllabus may be set out by an examination board or prepared by the tutor or instructor who teaches or controls the course. The word is also used more generally for an abstract or programme of knowledge, and is best known in this sense as referring to two catalogues published by the Catholic Church in 1864 and 1907 condemning certain doctrinal positions.