1. On July 19, 1778, the Battle of Fort Anne took place in present-day Fort Ann, New York, which was then part of New Hampshire. This was a significant battle in the American Revolutionary War, as it helped neutralize a British-led threat to the Continental Army in upstate New York.

2. On July 19, 1941, the New Hampshire State Veterans Cemetery was established in Boscawen. The cemetery serves as a final resting place for New Hampshire veterans and their eligible family members, and can accommodate over 10,000 graves.

3. On July 19, 1974, the New Hampshire Supreme Court ruled in the landmark case of State v. Dorsey that the state's death penalty law was unconstitutional. This decision effectively abolished the death penalty in New Hampshire until it was reinstated in 2019.

4. On July 19, 1995, the New Hampshire Fish and Game Department confirmed the first sighting of a mountain lion in the state in over 60 years. The sighting sparked controversy and debate about the presence of mountain lions in New Hampshire and their potential impact on the environment.

5. On July 19, 2004, the first same-sex marriage ceremony in New Hampshire history took place in Canterbury. The state legalized same-sex marriage in 2010, becoming one of the earliest states in the U.S. to do so through legislative action rather than a court ruling.