1. On December 4, 1905, the Broadmoor Hotel opened its doors in Colorado Springs. The luxurious resort was built by Spencer Penrose, a business magnate who made his fortune in the mining industry. Today, the hotel remains a popular destination for tourists and locals alike.

2. December 4, 1917, marked the grand opening of the Denver Mint. The facility was established to produce coins for the western United States, and it quickly became known for its high-quality craftsmanship. Today, the Denver Mint continues to produce coins for circulation and collectors.

3. In 1953, University of Colorado football star Byron "Whizzer" White was awarded the Heisman Trophy on December 4. White later went on to become a Supreme Court Justice, serving from 1962 to 1993. He was the first Coloradan to serve on the Supreme Court.

4. On December 4, 1992, the Denver Nuggets set an NBA record by scoring 27 points in a single quarter without a field goal. The team made 27 free throws in the quarter to defeat the Dallas Mavericks, 105-99.

5. December 4, 1998, marked the opening of the $4.5 billion Denver International Airport. The airport's distinctive tent-like roof and automated baggage system have made it one of the most recognizable airports in the world. Despite initial difficulties with its baggage system, the airport has become a major hub for United Airlines and other carriers.