Match the event with the land acquired. 1. Gadsden Purchase
Philippines, Puerto Rico, and Guam
2. Seward's Folly
parts of North Carolina and Georgia
land including Arizona and New
3. Louisiana Purchase
Mexico
4. Spanish-American War
land westward to the Rocky
Mountains and parts of Canada
Alaska
5. Indian Removal Act of 1830

Italy france germany

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.

If i remember correctly it was caused by people hurling bodies at a country for some reason and them they all became infected