1. In 1861, Colorado Territory was officially organized by Congress on February 28th. This helped to pave the way for Colorado's eventual statehood.

2. In 1893, Colorado governor Davis Waite signed the first anti-lynching law in the United States on February 28th. This law made lynching a felony and helped to combat the racial violence that was prevalent at the time.

3. On February 28, 1960, Denver's iconic Brown Palace Hotel hosted an event that would change the course of jazz history. Jazz pianist Erroll Garner recorded his popular album "Concert By The Sea" during a live performance at the hotel's ballroom.

4. Dorothy Harvey, the first woman elected to the Colorado State Senate, was born on February 28, 1907 in Pleasant Hill, Missouri. Harvey served in the senate from 1957 to 1960 and was a strong advocate for education and the environment.

5. In 1987, a massive snowstorm hit Colorado on February 28th, causing widespread power outages and transportation disruptions. The storm dumped up to 30 inches of snow in some parts of the state and resulted in several fatalities. The storm is still remembered as one of the worst in Colorado history.