The Island Pond Raid of 1984, the fallout, and the precedents set as a result.

Thinking along the lines of Island Pond, Vermont's history with the railroad (Grand Trunk, Rutland Railroad, etc.) You could look at the New Amtrac line and even tell the tale of Phineas Gage.

Beyond Ben & Jerry's, a look at Vermont businesses that are known world wide. For example, Concept 2 is the gold standard for rowing machines (ergs) used all around the world by collegiate and Olympic teams for training.

Not really questions more like general ideas, but I can frame out questions if needed.