Answer:
In 1879, the majority of people stopped using the Sante Fe Trail. Why?
There was a massive flood that washed the trail out.
It was spooky.
A railroad was built in its place.
They drove in cars.
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: A railroad was built in its place.