Respuesta :

in 1879, when the people reached new Mexico, people sropped using the santa fe trail.
hope i answered this question right. (:

Answer:

In 1879, when the ____________ reached New Mexico, people stopped using the Santa Fe Trail.

Explanation:

The Santa Fe Trail was opened in 1821 by merchant William Becknell, and was used until the arrival of the railroad in 1879-1880.

The answer is: For the arrival of the railroad.