What improvement did americans make on roads in the early 1800s?
a.
narrowing them
c.
setting them on a bed of gravel
b.
coating their surfaces with mud
d.
charging travelers to use them

Review of module 5 history dba history

Brainliesttt asap!me : ) answer in your own words. what was the relationship between medieval theories about scientific reasoning and the kind of reasoning favored during the scientific revolution?

What deadly disease cost many workers their lives before dr. william gorgas found a treatment?