Columbus’s theory that he could reach asia by sailing west was considered daring because
a. bartolomeu dias had already proven that an eastern land route was more profitable.
b. caravels were not capable of maneuvering through the strait of magellan.
c. some people believed that such a long voyage would be impossible.
d. such a journey would require columbus to circumnavigate earth.

i think it was because of how protected egyptian civilization was was which allowed them to evolve without much outside influence.

the reform movements that arose during the antebellum period in america focused on specific issues: temperance, abolishing imprisonment for debt, pacifism, antislavery, abolishing capital punishment, amelioration of prison conditions (with prison's purpose reconceived as rehabilitation rather than punishment), the humane treatment of animals, the humane and just treatment of native americans, the establishment of public institutions for the care of the destitute, orphans, blind, and mentally ill, the establishment of public schools, the abolition of tobacco use, vegetarianism, health reform, homeopathic medicine, woman's rights (including, at first, especially the establishment of a woman's right to own property apart from her husband and her right to sue for divorce), and the amelioration of labor conditions (including higher pay, the right to form unions, the right to strike, and the demand for limits on the number of work hours, and safe working conditions).

explanation: