I believe it would be traveling and migration that causes the spread of religion
Even though the Panama Canal is considered to be one of the most prominent engineering marvels of the world, it is literally built on many losses. During building the Canal more than 25,000 people died, mostly because of disease. Over 20,000 people died when the French set a hope to build the canal, and 5,000 died when the Americans did it successfully. It is a really huge sacrifice.
According to the census of 1850 there were approximately 23,191,876 people living in the United States
Labor workers is the correct option.
Laborer employment are most common in the building and construction industries. Laborers dig trenches, unload building supplies, and prepare job sites with their hands. They are required to operate and clean large machinery as well as use a variety of hand and power tools.
In contrast to labor performed by machines and working animals, manual labor or manual work is physical work performed by people. It is most literally work done with the hands and, by implication, work done with any of the body's muscles and bones.
Laborers do the work manually by putting physical efforts , therefore labor workers is the appropriate option.
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Native American* and Caddo Nation
