A historian is researching daily life in Ancient Egypt under a variety of ruling families over hundreds of years. This historian is using which of the following ways to study the past?
cause and effect
changes over time
sequence of events
similarities and differences

"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.