1799-1867 1928- 1928-2014 1972- 19thcentury 20thcentury artistic china christianityandpolitics christiansociology contributionsinchristiansociologyrendtorff contributionsinchristiansociologyrothe contributionsinpoliticaltheologypannenberg frank history pannenberg photography photographyofthenude portraitphotography rendtorff richard trutz wolfhart