<span>here
is archaeological evidence for human occupation before the land bridge
from Siberia opened up.
There has also been some recent DNA evidence
that suggests there might have been some European settlers before the
Vikings.
Although most of the DNA evidence points to Northern Asia. </span>
too much government control
A major negative effect of the Progressive era was too much government control which led to political corruption in both the state and national level. Powerful politicians became overpowering to the interest of the public resulting in ineffective government
In general, President Abraham Lincoln appointed Ulysses S. Grant to lead the Union armies after firing other generals because "<span>C. Grant was willing to outlast the enemy even at the cost of high casualties"</span>
Defend until the North gave up--essentially the South believed they had more conviction than the North and that would win out.
The South had an idea to fight for and believed they could survive on their own. The South relied on their ports and did not have as many supplies as the North but they had something to fight for. The North lacked morale and a mission. It was also believed by some that the South had the right to leave and the North had no right to stop them through military action.
After the civil war, railroads connected the country on a national scale, boosting the economy and leading to mass production, mass consumption, and encouraging entrepreneurs.