Why was Philosophy in the Dark Ages for 2400 Years?

a href="http://4.bp.blo.com/_Y6qRWSwMJs8/Rhm4pb4_CMI/AAAAAAAAATw/4wIzOBu03yg/s400/HartFaith+copy.jpg" rel="nofollow"http://4.bp.blo.com/_Y6qRWSwMJs8/Rh…/a