Which best explains why constantinople did not fall until 1453? the city was well protected and repelled attacks by invaders. the city created alliances with europeans to stop most attacks. the city was far from byzantine territories and only attacked once. the city created alliances with invaders to stop most attacks.

"the plan of removing the aboriginal people who yet remain within the settled portions of the united states . . approaches its consummation. . an extensive region . . has been assigned for their permanent residence. it has been divided into districts and allotted among them. many have already removed and others are preparing to go. . " removal of southern indians to indian territory, 1835 this passage is most closely related to a) imperialism. b) the civil war. c) westward expansion. d) the french indian war.