1875-1942. German church historian. Having studied at the universities of Jena and Bonn, he became professor first at Jena (1905-24) and then at Berlin (1924-42) as the successor of A. Harnack.* He served as the editor of the Zeitschrift für Neutestamentliche Wissenschaft from 1920 until his death and also, with others, Handbuch zum Neuen Testament (1906ff.), to which he contributed commentaries on Romans, 1 and 2 Corinthians, and Galatians. Lietzmann authored numerous important monographs, including an early study of Apollinarius of Laodicea (1904), another on Peter and Paul in Rome (1915; rev. ed. 1927), and an epochal work on the Mass and the Lord's Supper (1926). His four-volumed History of the Early Church (1932-44; ET 1937-51) remains a standard work. His academic interests bridged all the disciplines related to early Christian history-NT exegesis, classical archaeology and philology, papyrology, Hellenistic religion, canon law, and the like.