Answer:
On the eve of Antietam, McClellan would tell Washington he faced a gigantic Rebel army “amounting to not less than 120,000 men,” outnumbering his own army “by at least twenty-five per cent.” So it was that George McClellan imagined three Rebel soldiers for every one he faced on the Antietam battlefield.
Explanation:
brainliest pleahs
because they used them for jobs and relied on them to operate
True. Steamboats were much more efficient
It began a decade long boom.
This was known as the Roaring Twenties :)