What was one important feature that shaped the era of new imperialism but not the era of old imperialism?
a. the age of enlightenment
b. the industrial revolution
c. overseas trade routes
d. the discovery of the americas

By choosing to resupply fort sumter, abraham lincoln risked a. abandonment of the fort by union soldiers. b. abandonment of the fort by confederate soldiers. c. the appearance of giving in to confederate secession. d. armed conflict with southern soldiers.