The triangle shirtwaist fire played an important role in?

The Triangle Shirtwaist fire showed legislators how dangerous the conditions of factories were. After this incident, everything was updated, how buildings were built, escape routes, as well as other laws (no locking doors from the outside in a workplace). It basically caused an acceleration in developing laws that protected workers.

An elector in the electoral college.

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.