1. On February 4, 1870, Colorado was officially admitted as the 38th state of the United States. This came after a long struggle for statehood, which began in 1858 when the Pikes Peak Gold Rush drew thousands of settlers to the territory.

2. The world's first ski lift was installed on Loveland Pass in Colorado on February 4, 1936. The lift, which was made of surplus mining equipment and was powered by an automobile engine, changed the face of skiing and made the sport accessible to more people.

3. On February 4, 1971, the Colorado state legislature passed the nation's first law legalizing abortion. The law, called the "Colorado Abortion Act," allowed abortions to be performed by licensed physicians in the first 120 days of pregnancy. The law was a landmark in the movement for reproductive rights.

4. February 4, 1887, was the date of the "Snowstorm of the Century" in Colorado. Over four feet of snow fell in parts of the state, and snowdrifts as high as 20 feet blocked roads and rail lines. The storm caused widespread damage and several deaths, but also provided much-needed moisture to a region suffering from drought.

5. On February 4, 2018, the Philadelphia Eagles defeated the New England Patriots in Super Bowl LII. The game was played at U.S. Bank Stadium in Minneapolis, but had special significance for Colorado football fans, as Eagles head coach Doug Pederson was born and raised in Bellingham, Colorado. Pederson played quarterback at Northeast Louisiana University and spent several years as an assistant coach at various Colorado high schools and colleges.