1. On March 7, 1876, Colorado was admitted as the 38th state in the United States. After a long struggle for statehood, Colorado finally achieved its independence and became an official state.

2. In 1966, on March 7th, the U.S. military accidentally dropped four unarmed nuclear bombs on Colorado. The incident, known as the Palomares Bomb Incident, occurred when a B-52 bomber collided with a refueling tanker over Spain, causing the bombs to fall in various locations in Palomares, Spain, and a field near Crested Butte, Colorado. Fortunately, no one was killed in the incident, but it raised awareness of the risks of nuclear weapons.

3. On March 7, 1936, the state's first ski lift opened at Pioneer Ski Area in Hot Sulphur Springs, marking the beginning of Colorado's skiing industry. Today, Colorado is home to some of the most popular ski resorts in the world, attracting visitors from all over.

4. Colorado's largest recorded earthquake occurred on March 7, 1882, with a magnitude of 6.5. The earthquake was felt throughout the region, causing some damage to buildings and resulting in one fatality.

5. On March 7, 1872, entrepreneur Nellie Brown established the first female-only Denver Library Association. The library was created to provide women with access to literature and education, and to help them develop their intellectual and cultural values. Today, there are numerous libraries throughout Colorado, serving millions of residents and visitors alike.