1. On January 28, 1862, the Battle of Valverde took place in New Mexico during the American Civil War. This was an important battle as it was a Confederate victory that allowed them to control Albuquerque and Santa Fe for a short period of time.

2. In 1912, New Mexico became the 47th state to join the Union on January 28th. This was a historic moment for the state and its people, who had been fighting for statehood for many years.

3. In 1986, the US Department of Energy announced that the site for the first underground nuclear waste repository would be located in New Mexico. This site, known as the Waste Isolation Pilot Plant, was created to store nuclear waste underground in a safe manner.

4. On January 28, 1938, the Taos pueblo was declared a National Historic Landmark by the US government. This pueblo, located in northern New Mexico, is one of the oldest continuously inhabited communities in North America and is a UNESCO World Heritage site.

5. In 2000, the first train in over 60 years successfully crossed the border from Mexico into the US at Santa Teresa, New Mexico on January 28th. This was a historic moment for the state and for the country, as it marked a new era of cross-border trade and transportation.