4 Hammer, or the 4th of Deepwinter, is the 4th day of the year in the Calendar of Harptos.

On This DayEdit


  1. Steven E. Schend (1998). The Fall of Myth Drannor. (TSR, Inc), p. 21. ISBN 0-7869-1235-9.
  2. Steven E. Schend, Sean K. Reynolds and Eric L. Boyd (June 2000). Cloak & Dagger. (Wizards of the Coast), p. 9. ISBN 0-7869-1627-3.