How did the Civil War help lead to the industrial boom of the second half of the 19th century

When conducting research for forming a hypothesis, which practice should historians follow?

Was the amassing of men, equipment, and supplies for the 1944 invasion of europe. operation varsity operation nordwind operation dragoon operation overload operation torch

Why is julius caesar considered an important roman leader? a. his assassination led to a civil war that ended the roman republic.b. his commitment to justice led to the creation of the twelve tablesc. his support for democracy led to expand voting rights for all romansd. his policies as dictator led to a period of peace known as the pax romana