1. In 1896, the landmark case of Pueblo Indians v. the United States recognized the rights of the Pueblo tribes of New Mexico to their ancestral lands.

2. On May 18, 1990, the deadliest tornado in New Mexico history hit the town of Clovis, killing six people and causing millions of dollars in damage.

3. The National Atomic Museum opened in Albuquerque on May 18, 1969, showcasing the history of nuclear technology and the role of New Mexico in the development of atomic weapons.

4. The New Mexico State Police was established on May 18, 1935, to provide law enforcement services throughout the state.

5. On May 18, 1934, a massive dust storm known as Black Sunday swept through the Great Plains, impacting New Mexico and other states and contributing to the devastating Dust Bowl era of the 1930s.