1. In 1915, the Hartford Courant became the first newspaper to use a rotary printing press, which allowed for faster and more efficient printing. This technological innovation paved the way for modern newspaper production.

2. On March 31, 1664, a patent was granted by King Charles II of England to the Connecticut Colony, expanding its territory to include present-day New Haven and parts of Rhode Island. This marked a significant moment in the colony's history and solidified its control over the region.

3. In 1842, Mary Hall was born in Marlborough, Connecticut. She went on to become a pioneering woman in higher education, serving as the first dean of women at the University of Montana and later becoming the first dean of women at University of Chicago.

4. On March 31, 1885, the Connecticut State Legislature approved the creation of the Connecticut Agricultural Experiment Station, which conducts research and provides scientific knowledge to support agriculture and public health. The station is still in operation today and is an important resource for farmers and researchers.

5. In 1921, the first airplane flight from New York to Boston took place, with a stopover in Hartford, Connecticut. The flight was piloted by Naval aviator David Ingalls and his passenger, Major LeRoy Brown. This was a significant achievement in early aviation and helped to establish air travel as a viable mode of transportation.