The Spanish-American War was notable not only because the United States ... Spain had dominated Central and South America since the late fifteenth century. ... of additional naval bases in the Pacific Ocean, reaching as far as mainland Asia. ... best known part of the battles, but in fact, several African American regiments
I believe they were both harmed by nuclear radiation. Hiroshima was when the USA bombed Japan with a nuclear bomb. Chernobyl is the disaster in which a reactor caught fire and caused the harmful radiation to spread. I hope that was helpful. :)
The right answer is poverty. After visiting and working in prisons, asylums and almshouses, among others, Dorothea Dix witnessed that people with mental illnesses that were confined in those places, and treated badly, were also very poor. In fact, in 1854 she even presented before Congress a Bill for the Benefit of the Indigent Insane, which proposed the provision of federal land and funds for the creation of new mental institutions.