Chances are you already know the basics of Tredyffrin's important place in the American Revolution. But you've never seen history like you can Thursday night at 7 p.m. at the DuPortail House in Chesterbrook.

The Tredyffrin Historic Preservation Trust is presenting a lecture by historian and computer animator Sean Moir.  Moir has developed new animated maps that show exactly how British and American troops moved through what is now the backyards and shopping centers of Tredyffrin Township. It's a fascinating new way to see and perhaps get a whole new appreciation and understanding of important U.S. history that played out where we live, shop, and play sports today.

Moir, who also chairs the Tredyffrin Parks Board, says he will show how the maps of the revolutionary days would look if troops moved, camped and fought the war in the same places today.  If you're reading this somewhere along Swedesford Road or near the PECO power lines you might be very surprised to know what happened just a few steps away.

Click on the video clips to see a very short demonstration of the new map animation technology Moir will be using tonight and to hear part of his interview with Patch.