Final answer:
The Northern New Mexico Health Association and the Santa Fe Railroad helped legitimize New Mexico's claim as a health resort in 1882.
Step-by-step explanation:
In 1882, two institutions helped legitimize New Mexico's claim as a health resort:
- Northern New Mexico Health Association: This association was formed to promote the health benefits of New Mexico's climate and natural resources. It organized campaigns, published articles, and worked to attract visitors to the region.
- Santa Fe Railroad: The completion of the railroad in 1880 made New Mexico more accessible to tourists and health seekers. The railroad company promoted New Mexico as a health resort through advertisements and special fares.