1. On January 29, 1820, the Treaty of 1820 was signed in Washington, D.C., which established the boundary between Maine and New Hampshire. The boundary was a compromise that gave some disputed territory to each state.

2. In 1861, on January 29, New Hampshire Governor Nathaniel S. Berry issued a proclamation urging the state to be loyal to the Union during the American Civil War. The proclamation called for the state's militia to be organized and prepared for service in defense of the Union.

3. On January 29, 1945, New Hampshire Senator Styles Bridges introduced a bill to create the United Nations. The bill was eventually passed by Congress and the United Nations was established later that year.

4. In 1959, on January 29, the New Hampshire State House was designated a National Historic Landmark. The State House, located in the capital city of Concord, is the oldest capitol building in the United States in which the legislature still occupies its original chambers.

5. On January 29, 1979, New Hampshire Governor Hugh Gallen signed into law the first-in-the-nation Bottle Bill. The legislation required a 10-cent deposit on containers for beer and soda, with the goal of reducing litter and encouraging recycling. The Bottle Bill continues to be one of the state's most popular and successful environmental initiatives.