October 19 is a significant date in the history of New Hampshire. From political milestones to cultural events, let's take a look at five interesting facts about this day in the state's history.

1. New Hampshire ratifies the U.S. Constitution:
On October 19, 1787, New Hampshire became the ninth state to ratify the United States Constitution. This granted the document's adoption as the supreme law of the land and paved the way for the establishment of the federal government.

2. NH's Concord covered bridge burns down:
In 1862, on this day, the iconic Concord covered bridge in New Hampshire burned down. The bridge, which had been built in 1785 and repaired many times, was one of the oldest in the country.

3. Dartmouth College founded:
On October 19, 1769, Dartmouth College was founded in Hanover, New Hampshire. It is the ninth-oldest institution of higher learning in the United States and is a member of the Ivy League.

4. NH hosts the first free public library:
New Hampshire established the first free public library in the United States on October 19, 1833. The Peterborough Town Library was free to all residents and is still in operation today.

5. Halloween event - Portsmouth Halloween Parade:
Each year on or around October 19, Portsmouth, New Hampshire hosts its annual Halloween parade. The event is the largest of its kind in the state and draws thousands of visitors each year to see the creatively spooky costumes and floats.

In conclusion, these are five fascinating facts about New Hampshire's history on October 19, making it an important date for the state's political, cultural, and educational institutions.