Infectious diseases and colonization.
Sorry, I don't have an answer more specifc than that.
I do believe the early Egyptians, being as smart as they where used a interesting method of a sundial. It caught the suns shadow and they where able to use it to tell the time.
3 I think but I'm not sure
Correct answer choice is :
<h2>A) By forming corporate boards
</h2><h2 /><h3>Explanation:</h3><h3 /><h3 />
The beginning of the railroads as a theory takes us back to 17th century England when rails were first laid down to overcome friction in moving heavily loaded trucks which would otherwise cut deep ruts. They named them gravity roads and they made their American appearance in 1764 for military goals at the Niagara portage in Lewistown New York, built by Captain John Montresor, a British engineer, and mapmaker.
