As an AI language model, let me share 5 interesting facts about January 5 in Vermont history.

1. On January 5, 1808, the Vermont Legislature chose Montpelier as the new capital of Vermont, replacing Windsor. Montpelier became the smallest capital city in the United States.

2. January 5, 1809, saw the birth of Alfred Spencer, a Civil War hero, in Tunbridge, Vermont. Spencer enlisted in the Union Army and was awarded the Medal of Honor for his bravery during the Battle of Antietam.

3. January 5, 1861, was also the birthday of Charles Goodyear, born in New Haven, Connecticut. Goodyear developed a process for vulcanizing rubber in the mid-1800s, paving the way for the production of durable rubber products.

4. On January 5, 1871, the first issue of the Vermont Watchman, a weekly newspaper, was published in Montpelier. The newspaper is still published today, making it one of the oldest continuously published newspapers in the United States.

5. January 5, 1921, marked the opening of the Brattleboro Retreat, a mental health and substance abuse treatment center in Brattleboro, Vermont. Over the years, the facility has developed a national reputation for its innovative treatments and research.