Did Martin Luther really post his 95 Theses to the Wittenberg Castle Church door in October 1517? Probably not, says Reformation historian Peter Marshall. But though the event might be mythic, it became one of the great defining episodes in Western history, a symbol of religious freedom of conscience which still shapes our world 500 years later.

The third edition of Christianity Through the Centuries brings the reader up-to-date by discussing events and developments in the church into the 1990s. This edition has been redesigned with new typography and greatly improved graphics to increase clarity, accessibility, and usefulness. - New chapters examine recent trends and developments (expanding the last section from 2 chapters to 5) - New photos. Over 100 photos in all -- more than twice the number in the previous edition - Single-column format for greater readability and a contemporary look - Improved maps (21) and charts (39) Building on the features that have made Christianity Through the Centuries an indispensable text, the author not only explains the development of doctrines, movements, and institutions, but also gives attention to "the impact of Christianity on its times and to the mark of the times on Christianity."