December 15 is the 349th day of the year..
- The Bill of Rights is passed into law. The news of this is shown on a machine invented by Jules Brown.
- Jules Brown and Verne Brown celebrate their parents' wedding anniversary with gifts. Jules unveils his invention, the cross-time headliner, and announces that he has booked passage for them on a trip to Mars a century in the future. Verne draws a picture.