1. In 1746, the Treaty of Aix-la-Chapelle was signed, ending King George's War between Great Britain and France. This treaty also resolved many outstanding issues between France and its New Hampshire-based Indian allies.

2. On October 22, 1775, the Continental Congress authorized the formation of the Continental Navy, which was instrumental in securing American independence during the Revolutionary War.

3. In 1810, the first private school in New Hampshire was opened in the town of Acworth. The school was run by the Reverend Nathaniel Dickey and was attended by both boys and girls.

4. On October 22, 1869, construction of the first transcontinental railroad was completed when the Union Pacific and Central Pacific railroads were joined together at Promontory Summit, Utah. This new transportation link connected New Hampshire and other states in the east with the west coast for the first time.

5. In 1949, a major fire broke out in the historic Portsmouth Naval Shipyard. The fire destroyed several buildings and caused millions of dollars in damage, but no one was injured. The shipyard was soon rebuilt and continued to play a vital role in the defense of the United States during the Cold War.