1. In 1876, Colorado became the 38th state to join the United States. Election Day that year was on November 7, and Colorado voters approved a new state constitution by a margin of two-to-one.

2. On November 7, 1905, Colorado Governor Jesse F. McDonald declared martial law in the town of Cripple Creek, where striking mine workers had shut down several mines. The National Guard was called in to restore order, and the strike was eventually broken.

3. Colorado native Robert W. Richardson was awarded the Nobel Prize in Physiology or Medicine on November 7, 1956, for his work on the structure of ribonucleic acid (RNA). Richardson shared the prize with two other scientists, but was the only one born in Colorado.

4. The deadliest mass shooting in Colorado history occurred on November 7, 2007, at the Youth With A Mission training center in Arvada. The gunman, Matthew Murray, killed two people and injured two others before being shot and killed by a security guard.

5. On November 7, 2017, Denver voters approved a $937 million bond measure aimed at improving the city's public infrastructure. The measure included funding for projects such as road and bridge repairs, park improvements, and new libraries and community centers.