Maimonides asserts that until the Babylonian exile, all Jews composed their own prayers. After the exile, however, when the exiles' understanding of Hebrew diminished and they found it difficult to compose prayers in Hebrew, Ezra and his court composed the "Amidah" prayer. Modern scholarship dating from the Wissenschaft des Judentums movement of 19th-century Germany, as well as textual analysis influenced by the 20th-century discovery of the Dead Sea Scrolls, suggests that dating from the Second Temple period there existed "liturgical formulations of a communal nature designated for particular occasions and conducted in a centre totally independent of Jerusalem and the Temple, making use of terminology and theological concepts that were later to become dominant in Jewish and, in some cases, Christian prayer."