1. Ethan Allen was born on October 30, 1738, in Litchfield, Connecticut. Although he wasn't from Vermont, he became the leader of the Green Mountain Boys, a group of patriots who fought for Vermont's independence during the American Revolution. He is considered one of Vermont's most important historical figures.

2. On October 30, 1848, the University of Vermont opened its doors in Burlington. The university, which was founded in 1791, is the fifth-oldest university in New England and has had many notable graduates, including former US President Calvin Coolidge.

3. The Briggs Opera House in White River Junction opened on October 30, 1891. The opera house was a major cultural center for the town and hosted a wide range of performances, including plays, musicals, and lectures.

4. On October 30, 1939, Vermont's famous "champ" monster was first spotted in Lake Champlain. The creature, which is said to resemble the Loch Ness Monster, has been the subject of many sightings and investigations over the years.

5. On October 30, 1975, Vermont became the first state to legalize civil unions for same-sex couples. The law was a landmark moment in the fight for LGBTQ rights and paved the way for other states to follow suit.