1. In 1854, the Gadsden Purchase was finalized, which added a significant portion of southern Arizona and southwestern New Mexico to the United States.

2. In 1917, New Mexico officially became the 47th state in the U.S. after years of becoming a U.S. territory in 1850.

3. On June 30, 1945, the world's first atomic bomb test, codenamed "Trinity," was conducted at Alamogordo Bombing Range, located in southern New Mexico. This kick-started the atomic age and changed the world forever.

4. In 1966, a massive flood devastated Albuquerque, killing thirty people, and caused millions of dollars in damage. This event was a turning point for the city's infrastructure, leading to the construction of flood control channels to prevent future disasters.

5. The National Museum of Nuclear Science & History opened its doors in Albuquerque on June 30, 1969. The museum is dedicated to educating visitors on the history of the nuclear age and the role of nuclear science in society, including the development and use of nuclear weapons.