1. On March 5, 1770, the infamous Boston Massacre occurred, which led to heightened tensions and eventual rebellion in New Hampshire and throughout the American colonies.
2. On March 5, 1839, the New Hampshire Supreme Court ruled in favor of African American student Sarah Roberts, declaring that segregated schools were unconstitutional under the state's constitution.
3. On March 5, 1862, New Hampshire Governor Nathaniel S. Berry signed a bill allowing the state to purchase and use the now-famous "Old Man of the Mountain" granite profile as a state symbol, which it remained until its collapse in 2003.
4. On March 5, 1969, a bomb was detonated at the Harvard Observatory in New Hampshire by anti-war activists protesting the university's involvement in military research.
5. On March 5, 2018, New Hampshire became the last state in New England to pass a law allowing for the use of medical marijuana to treat post-traumatic stress disorder (PTSD).