During the construction of the first transcontinental railroad, the central pacific railroad started in california and built the railroad east to promontory point, utah, where it was connected with the railroad built from the east by the union pacific railroad. what was the ethnicity of the majority of the workers who built the central pacific railroad?

The ethnic majority of the workers who helped build the Central Pacific Railroad was mainly immigrants from mainland China or Chinese

the ethnic majority of the workers who helped build the Union Pacific Railroad was from Europe.

Hope this helps!! XD

The constant presence of diseases or infectious agents within a given geographic area or population group. it may also refer to the usual prevalence of a given disease with such area or group. it includes holoendemic and hyperendemic diseases. a holoendemic disease is one for which a high prevalent level of infection begins early in life and affects most of the child population, leading to a state of equilibrium such that the adult population shows evidence of the disease much less commonly than do children (malaria in many communities is a holoendemic disease). a hyperendemic disease is one that is constantly present at a high incidence and/or prevalence rate and affects all groups equally. so probably family history.