1. In 1633, the first official school in the United States, the Boston Latin School, was founded in Massachusetts on April 12th. It served as a model for many other schools across the country in the coming centuries.

2. On April 12th, 1775, the first shots were fired in the American Revolutionary War at the Battle of Lexington and Concord. This event marked the beginning of the war that led to American independence from Great Britain.

3. One of Massachusetts' most famous poets, Robert Lowell, was born on April 12th, 1917. Lowell was a Pulitzer Prize winner and served as Poet Laureate of the United States from 1947 to 1948.

4. The USS Nautilus, the first nuclear-powered submarine, was commissioned on April 12th, 1954. It was built at the Electric Boat Company in Groton, Connecticut, but the naval base in New London, Connecticut played a major role in its development.

5. The Massachusetts Institute of Technology (MIT) was established on April 12th, 1861. It is one of the world's most prestigious engineering and technology universities, known for its cutting-edge research and innovation.