What is the term for a short statement about history that has not yet been prove?

Erugent which russian tsar defeat napoleon and saw himself as the leader of european monarchs who opposed revolutionary change ivan the terrible ivan the great nicholas 1 alexander 1

How did the phillips brothers expand their businesses? by selling it to other businessmen by changing their source product by merging their companies by acquiring government support

"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.