1. Vermont Ratifies the US Constitution: On December 9, 1791, Vermont became the 14th state to ratify the United States Constitution. This historic event marked the final ratification necessary to establish the federal government as we know it today.

2. Vermont's First State Capitol: On December 9, 1805, the Vermont legislature convened in the newly-built State House, located on the same hill where the current State House stands in Montpelier. This building served as Vermont's first state capitol until it burned down in 1857.

3. The Death of a Famous Senator: On December 9, 1950, George D. Aiken, Vermont's longest-serving senator, died in Montpelier. Aiken had served in the Senate for 34 years and was known for his efforts to promote agricultural and environmental conservation.

4. A Blizzard for the Ages: On December 9, 1970, Vermont experienced one of its most historic snowstorms. The blizzard dumped up to 60 inches of snow on some parts of the state, causing widespread damage and power outages.

5. The Start of a Peaceful Revolution: On December 9, 2000, the Vermont Supreme Court ruled that the state must grant same-sex couples the same legal rights as heterosexual couples. This landmark decision paved the way for the state to later legalize same-sex marriage in 2009, becoming the fourth state in the US to do so.