March 4 has an interesting history in Colorado. Here are five facts that make it stand out:

1. In 1877, on March 4th, Colorado was officially admitted as a state. Prior to that, it had been a territory since 1861. Today, March 4th is observed as Colorado Day.

2. On March 4, 1907, Colorado's first-ever eugenics law was passed. This legislation enabled state officials to enforce sterilization of individuals who were deemed "feeble-minded." The law was repealed in 1972.

3. In 1923, the infamous Ku Klux Klan held the largest rally in its Colorado history on March 4th. The event was staged at the Denver Auditorium and drew a crowd of 4,000 Klan members.

4. On March 4, 1933, newly elected president Franklin D. Roosevelt conducted his first fireside chat with the American people. Colorado residents tuned in to listen to the speech, which addressed the financial crisis of the Great Depression.

5. In 1969, Colorado State University hosted an anti-war demonstration on March 4th. Over 600 students participated in the protest, which was peaceful and aimed at ending U.S. involvement in the Vietnam War.