1. On August 19, 1839, the first public railroad in New Hampshire, the Portsmouth and Concord Railroad, was opened for service. The rail line connected the seaport city of Portsmouth to the capital city of Concord, revolutionizing transportation in the state.

2. On August 19, 1909, New Hampshire Governor Charles M. Floyd signed into law a bill giving women in the state the right to vote in municipal elections, making New Hampshire the ninth state in the country to grant women partial suffrage.

3. On August 19, 1955, Hurricane Diane made landfall in New Hampshire, causing widespread flooding and extensive damage across the state. The storm killed 19 people and prompted significant reforms to the state's flood control and emergency management policies.

4. On August 19, 1977, former New Hampshire Governor Walter Peterson signed a bill establishing the University System of New Hampshire, a network of public universities and colleges in the state. The system includes the flagship University of New Hampshire in Durham and the regional comprehensive university, Plymouth State University.

5. On August 19, 2014, Claremont resident Pamela Smart was denied parole for her role in the murder of her husband, Gregg, in 1990. Smart, who was convicted of conspiring with a group of teenagers to kill her husband, has been serving a life sentence without the possibility of parole since 1991.