1. In 1637, English clergyman John Harvard died and left his library and half of his estate to a new college in Cambridge, Massachusetts. This college later became known as Harvard University.

2. In 1791, the first U.S. Bank opened in Boston, Massachusetts. It was established by Alexander Hamilton and was intended to stabilize the nation's finances after the Revolutionary War.

3. In 1855, the first train from Boston to Chicago departed. This marked a major milestone in American transportation and made it easier for people and goods to travel across the country.

4. In 1898, Massachusetts became the first state to establish a minimum wage. This was an important step in the fight for workers' rights and influenced other states to follow suit.

5. In 1947, the Boston Celtics were formed as part of the Basketball Association of America. They went on to become one of the most successful and iconic NBA teams in history, with a record 17 championships.