1. The Boston Red Sox clinched the American League East Division on September 23, 1986, after defeating the Toronto Blue Jays 6-3. This was the team's first division title since 1975 and led to them making it to the World Series that year.

2. On September 23, 1779, the Penobscot Expedition came to a close in what is now Maine. The failed military expedition, led by Massachusetts naval officers, aimed to take over the British fortifications in the area, but ultimately resulted in a humiliating defeat for the Americans.

3. The Massachusetts State House was completed on September 23, 1798, after four years of construction. The building, located on Beacon Hill in Boston, is still the seat of government for the Commonwealth of Massachusetts today.

4. The USS Constitution, also known as "Old Ironsides," was launched from the Charlestown Navy Yard on September 23, 1797. The ship played an important role in the War of 1812 and is still commissioned by the United States Navy today.

5. The Great New England Hurricane, also known as the Great Hurricane of 1938, hit Massachusetts on September 23, causing widespread damage and loss of life. The hurricane, which was one of the deadliest and most destructive storms to hit New England, resulted in over 600 deaths and millions of dollars in property damage.