1. On January 7, 1800, New Hampshire formally ratified the U.S. Constitution, becoming the ninth state to do so. This was a significant moment in American history, as it allowed the Constitution to take effect and established a strong central government.

2. In 1833, on January 7, the New Hampshire State Legislature passed the nation's first law providing for the establishment of a state board of education. This groundbreaking law paved the way for widespread education reform across the country.

3. On January 7, 1929, New Hampshire native Edwin H. Land invented the polarizing filter, a technology used in cameras and other optical devices. Land went on to found the Polaroid Corporation and became one of the most successful inventors of the 20th century.

4. In 1968, on January 7, the New Hampshire primary played a pivotal role in the presidential election, with anti-war candidate Eugene McCarthy winning an unexpected 42% of the vote against incumbent President Lyndon B. Johnson. The primary helped to galvanize the anti-war movement and led to Johnson's decision not to seek re-election.

5. On January 7, 2021, New Hampshire Governor Chris Sununu signed an executive order establishing a commission to study and recommend policies for addressing climate change in the state. The commission will be composed of experts from a variety of industries and will examine issues such as renewable energy and reducing greenhouse gas emissions.