The New Fairfield Historical Society is celebrating “50 years of History” this year.  A letterboxing treasure hunt-style activity is being held tomorrow.  Letterboxers hide small, weatherproof boxes in publicly-accessible places and post clues to finding the box online, and then others can stamp their logbook, and leave their imprint on the letterbox's logbook.  All of the letterboxes in this hunt are in historically significant places in New Fairfield.  Participants can go to the Little Red School House on Sunday from 1-3pm to pick up a stamp card and rules for the hunt. There's a suggested 5 dollar donation.  Commemorative patches will be given to those who find all locations.