1. On April 16, 1775, Paul Revere rode from Boston to Lexington to warn John Hancock and Samuel Adams of the approaching British troops, leading to the start of the American Revolution.

2. On April 16, 1949, the Massachusetts Turnpike opened, connecting Boston to the New York border and revolutionizing long-distance travel in the state.

3. April 16, 1859 marked the day that the first professional baseball game was played in Massachusetts. The contest took place in Pittsfield, where the New York Knicks beat the local team, 22-10.

4. On April 16, 1975, a fire broke out in a warehouse in Boston's Charlestown neighborhood, leading to one of the largest arson investigations in U.S. history. The fire resulted in ten deaths and destroyed dozens of multi-story brick buildings.

5. April 16, 2013 is a date that will be remembered by many in Massachusetts for the deadly terrorist attack on the Boston Marathon. Three people were killed and hundreds were injured in the bombing near the finish line, leading to a massive manhunt and the eventual capture of the suspects.