1. On March 30, 1866, the New Hampshire legislature passed a bill granting African American men the right to vote in state elections. This made New Hampshire one of the first states to extend full voting rights to African American men after the Civil War.

2. In 1903, the first automobile was registered in the state of New Hampshire. The car, a 1903 Oldsmobile, belonged to Manchester resident William C. Anderson.

3. On March 30, 1945, the New Hampshire Supreme Court issued a ruling in the landmark case of State v. Pike. The court overturned a lower court's decision and declared that state and local laws prohibiting interracial marriages were unconstitutional.

4. In 1968, New Hampshire Governor John W. King signed into law the state's first comprehensive environmental protection legislation. The law established the Department of Natural and Cultural Resources and created rules for the protection of air, water, and land.

5. On March 30, 1979, a partial meltdown occurred at the Unit 2 reactor at the Seabrook Nuclear Power Plant. The incident led to protests and a prolonged legal battle over the safety and viability of nuclear power in New Hampshire.