Thanks. I wanted to emphasize the importance of learning dates in history, since they are requisite for any kind of theorizing about cause and effect. If X happened before Y, then Y didn't cause X. Knowing dates makes it easier to remember history because you can then recount events as part of a narrative story: "In response to Germany doing X, Britain did Y, etc." Paul Johnson's "Modern Times" shows how exciting history can be made if the historian pays obsessive attention to placing events on a day by day timeline.