1. On June 28, 1775, a colonial military unit known as the New Hampshire Rangers was established in Portsmouth, New Hampshire. The Rangers played a crucial role in defending the state's borders during the American Revolution.

2. One of the most significant events in New Hampshire history occurred on June 28, 1866, when the state became the first in the nation to hold a state fair. The event, which was held in Manchester, featured agricultural displays, competitions, and entertainment.

3. June 28, 1894, saw the opening of the Hampton Beach Casino Ballroom, one of the state's most famous live music venues. Over the years, the Ballroom has hosted some of the biggest names in music, including Duke Ellington, Janis Joplin, and Frank Sinatra.

4. On June 28, 1914, Archduke Franz Ferdinand of Austria-Hungary was assassinated in Sarajevo, triggering a chain of events that led to the outbreak of World War I. New Hampshire contributed significantly to the war effort, with thousands of troops serving overseas and many more working in the state's factories and shipyards.

5. In more recent history, June 28, 2018, marked a significant milestone for the state's LGBTQ+ community when Governor Chris Sununu signed a bill banning discrimination based on gender identity in employment, housing, and public accommodations. The bill made New Hampshire the 19th state in the nation to provide such protections.