1. Treaty of Guadalupe Hidalgo was signed
On May 14, 1848, the Treaty of Guadalupe Hidalgo was signed, which ended the Mexican-American War and ceded a large portion of Mexico's territory, including what is now New Mexico, to the United States.

2. First Woman Elected Governor in New Mexico
On May 14, 1924, Democrat Nellie Tayloe Ross was elected as the first woman governor in New Mexico and in the United States.

3. Creation of the White Sands National Monument
On May 14, 1930, President Herbert Hoover signed a proclamation creating White Sands National Monument in southern New Mexico, preserving a unique area of white gypsum sand dunes.

4. The Largest Wildfire in New Mexico's History
On May 14, 2000, the Cerro Grande Fire ignited in northern New Mexico and quickly became the largest wildfire in the state's history, burning over 47,000 acres and destroying over 200 homes and buildings.

5. First Woman Elected to Congress from New Mexico
On May 14, 2018, Democrat Deb Haaland won the Democratic primary for the New Mexico's 1st congressional district, becoming the first Native American woman to be elected to Congress from New Mexico. She went on to win the general election, and was sworn into office in 2019.