1. Vermont becomes the 14th state in the USA: On April 11, 1791, Vermont became the 14th state in the Union after being an independent republic for 14 years.

2. Ethan Allen, a famous Vermont patriot, dies: Ethan Allen is known for his leadership in founding the state of Vermont and for leading the Green Mountain Boys militia during the Revolutionary War. He died on April 11th, 1789.

3. Vermont becomes the first state to recognize same-sex marriage: On April 11, 2009, Vermont became the first state to legalize same-sex marriage by legislative means, as opposed to a court decision.

4. The Northeast Kingdom is established: On April 11, 1961, Vermont Governor F. Ray Keyser signed into law a bill that created the Northeast Kingdom, a region composed of three counties in the state's northeast corner.

5. The Vermont State Fair is established: The first Vermont State Fair was held in September of 1846 in Rutland, Vermont. However, it was on April 11, 1856, that the Vermont legislature approved an act establishing the Vermont State Agricultural Society, which oversees the state fair.