1. On June 30, 1908, the first train arrived in Lewistown, Montana, connecting the town to the rest of the country by rail. This event paved the way for the region's economic growth, allowing for easier transportation of goods and people.

2. In 1984, the Montana State University Board of Regents approved a plan to rename the school's football stadium in honor of Bobcat football coach and athletic director Sonny Holland. Since then, the Robert W. "Sonny" Holland Stadium has been the home of Montana State Bobcats football.

3. On June 30, 1906, President Theodore Roosevelt signed the Antiquities Act, which authorized him to establish national monuments to protect historic sites, artifacts, and natural wonders. Montana is home to several national monuments, including the Pompeys Pillar National Monument and the Little Bighorn Battlefield National Monument.

4. In 1953, the Helena Independent-Record reported on the construction of the state's first modern uranium processing plant in the town of Bearcreek. The plant, which was built by the Anaconda Copper Mining Company, helped fuel the nation's efforts to build nuclear weapons during the Cold War.

5. On June 30, 1975, the Montana Supreme Court issued a landmark ruling in the case of State v. Bergherm, declaring that the state's death penalty law was unconstitutional. The decision ended the practice of capital punishment in Montana until a revised law was passed in 1977.