1. On October 15, 1921, New Hampshire officially became the first state to have a radio broadcast station. The New Hampshire State College, which is now known as the University of New Hampshire, established the station with the call letters WTSN.

2. In 1971, the first-ever "Women's Day" was celebrated in New Hampshire on October 15. This day recognizes the accomplishments and contributions of women in society.

3. On October 15, 1783, the first-ever hot air balloon flight in North America took place in Concord, New Hampshire. The balloon, called the "Fowle's Aerostat," was launched by French balloonist Jean-Pierre Blanchard and American doctor John Jeffries.

4. In 1873, the University of New Hampshire was founded on October 15. Originally known as the New Hampshire College of Agriculture and the Mechanic Arts, the university is now a leading public research institution.

5. On October 15, 1991, the first-ever presidential town hall debate was held at the University of New Hampshire in Durham. The debate, between President George H.W. Bush, Democrat Bill Clinton, and independent candidate Ross Perot, was moderated by ABC News anchor Carole Simpson.