1. On August 12, 1876, New Hampshire native Mary Baker Eddy published the first edition of her book, Science and Health with Key to the Scriptures. The book, which outlines the central beliefs of the Christian Science religion, became a bestseller and is still widely read and studied today.

2. August 12, 1950, marked the dedication of the Mount Washington Observatory, located atop the highest peak in the Northeastern United States. The observatory conducts vital research on weather and climate conditions in the region and welcomes thousands of visitors each year.

3. The town of Gilmanton, New Hampshire was incorporated on August 12, 1727. Located in Belknap County, Gilmanton is known for its historic architecture and charming downtown area.

4. On August 12, 1898, the New Hampshire legislature passed a law establishing the University of New Hampshire as a land-grant institution. Today, UNH is a top-ranked public university and a leader in research and innovation.

5. The Old Man of the Mountain, a natural rock formation located in Franconia Notch State Park, collapsed on August 12, 2003. The iconic symbol of New Hampshire's White Mountains had been a popular tourist attraction for generations, and its loss was mourned across the state and the country. However, efforts to preserve the site and create a new memorial have continued in the years since.