Why is "California Zephyr (1949–1970)" trending?

Wikipedia Overview

The California Zephyr was a passenger train that ran between Chicago, Illinois, and Oakland, California, via Omaha, Denver, Salt Lake City, Winnemucca, Oroville and Pleasanton in the United States. It was operated by the Chicago, Burlington & Quincy (CB&Q), Denver & Rio Grande Western (D&RGW) and Western Pacific (WP) railroads, all of which dubbed it "the most talked about train in America" on March 19, 1949, with the first departure the following day. The train was scheduled to pass through the most spectacular scenery on its route in the daylight. The original train ceased operation in 1970, though the D&RGW continued to operate its own passenger service, the Rio Grande Zephyr, between Salt Lake City and Denver, using the original equipment until 1983. In 1983 a second iteration of the California Zephyr, an Amtrak service, was formed. The current version of the California Zephyr operates partially over the route of the original Zephyr and partially over the route of its former rival, the City of San Francisco.