the wittenburg door, sometimes known as simply the door, was a christian satire and humor magazine, published bimonthly by the non-profit trinity foundation based in dallas, texas. the magazine started publication in 1971 and ceased publication in 2008. the title was a reference to the ninety-five theses written by martin luther in 1517 that he is believed to have posted on the door of the all saints' church in wittenberg.