The Disturbingly Prescient Calendar of September 2001

The Transom was in the archives room, having a lil' smoke in the most flammable place in the office, of course, as is our way, and as we leaned down to ash in one of George Gurley's sardine cans, our hand grazed the September 10th, 2001 issue of the Observer. Remembering the annual September calendar, we flipped to it, and lo and behold, on the entry for the day that would have been that issue's tomorrow, a message from the near-past. What did then-writer, now-editor Alexandra Jacobs know, and when did she know it?