A cook in the army was known to spread the disease.
Poor sanitation conditions
Canals were the mean of transportation that contributed to the growth of river cities such as Cincinnati.
nothing
thriving cities
PCB's
Great rivers
D the access to major waterways
You need to specify which two cities you are referring to if you want to make it possible to answer your question.
Henry Bessemer
Its commercial links with coastal cities
No cities were targeted at Pearl Harbor; only the military bases.
They both contributed to the invention of the skyscraper, which really transformed cities.
inadequate housing