1. On March 7, 1774, the Massachusetts House of Representatives passed the "Boston Port Bill" in response to the Boston Tea Party. The bill closed the port of Boston until the colonists paid for the destroyed tea and recognized the authority of British law. This event further fueled the American Revolution.

2. In 1876, Alexander Graham Bell received the patent for the telephone on March 7. Bell's invention revolutionized communication worldwide.

3. March 7, 1908, marked the adoption of the state flower of Massachusetts, the Mayflower. This beautiful white flower was chosen for its historical significance as well as its aesthetic beauty.

4. The Boston University Bridge was officially opened on March 7, 1928. The bridge spans the Charles River and connects Boston and Cambridge, Massachusetts. It is one of the most frequently traversed bridges in the area.

5. On March 7, 1965, protesters gathered in Selma, Alabama, to demand voting rights for African Americans. This historic march led to the signing of the Voting Rights Act of 1965, which protected the right to vote for all Americans regardless of race. Many Massachusetts residents traveled to Selma to show their support for the protesters.