1. The first record of European exploration in Vermont was made on May 11, 1609 by French explorer Samuel de Champlain. He claimed the region for France and named it "Verd Mont" (Green Mountain).

2. On May 11, 1775, Ethan Allen and a group of Vermonters captured Fort Ticonderoga from the British during the American Revolutionary War. This was a significant victory for the Patriots, as it provided them with valuable supplies and artillery.

3. The University of Vermont was established on May 11, 1791, becoming the fifth college in New England. It was originally chartered as a private university, but it became a public institution in 1865.

4. The Vermont State House, which serves as the seat of government for the state, was dedicated on May 11, 1859. This historic building is constructed with locally sourced materials, including Barre granite and Vermont marble.

5. May 11, 1926 marked the opening of the Bennington Battle Monument, which commemorates the Battle of Bennington that took place during the American Revolution. The monument stands at 306 feet tall and is the tallest structure in Vermont.