Why Study Church History?

Mike Reeves asked at the recent men's convention why we should bother to study church history. His answer was 'because there are more wise dead Christians than wise living ones'. 
AC has skillfully redesigned our church history notice board (pictured). Though we should guard against idolising saints of old, we ought to learn from their examples.
'Since we are surrounded by such a great cloud of witnesses, let us throw off everything that hinders and the sin that so easily entangles'.