Answer:
In April 2016, Chinese Railroad Workers Project scholars from Canada, China, Taiwan, and the U.S. traveled to the Sierra Nevada mountains to explore tunnels — many of them cut from solid granite — that Chinese workers excavated.
The terrain was unforgiving, even in the spring. Fisher told The New York Times that the guide she and her colleagues had been traveling with slipped on a patch of black ice in a tunnel and broke their shoulder.
“We literally would not be sitting in these buildings — these buildings would not exist — without the work of these Chinese workers.”
Shelley Fisher Fishkin
The labor was undoubtedly dangerous. Chang said that great numbers died, perhaps over 1000 workers. Construction casualty records were not kept, so the specific number remains unknown, but historians estimate that one in 10 workers lost their life from explosion accidents, landslides, avalanches, heatstroke or hypothermia. Research also shows the callous way in which Chinese workers, whose individual names were not recorded by Central Pacific, were often treated.
“To avoid interrupting construction schedules, labor contractors and line supervisors maintained a pool of able-bodied men who could replace injured and dead workers at a moment’s notice,”
the sputnik launch because american's feared that it was a Russian weapon so the american government started projects to beat Russia to space
I believe it is building igloos
In general, silk was most likely was Persia’s most valuable asset. It was silk and similar entities that were traded by Persians along the infamous Silk Road, which connected the far East with Europe. Persia was in an advantageous position right in the middle.
