How many slave states were there in 1850

Ahistorian is writing a book about british prime minister winston churchill. she claims that churchill was one of the earliest british leaders to realize that nazi germany was a serious threat to british security what is the best way to determine whether the historian's interpretation is valid? o a. review primary sources to see if churchill ever recorded his opinions of nazi germany. o b. find out whether the historian has written any other books about british leaders. c. analyze secondary sources summarizing the effects of nazi germany on great britain. o d. cite the historian's book in another study about important 20th- century world leaders.

Which sentence best describes the effect of the bill of rights? a.it gave parliament the right to elect a successor when a monarch died.b.it ensured that no monarch could rule without parliament.c.it guaranteed all people the rights of liberty and property.d.it defined the rights of the officials of the church of england.

What kind of contact did christopher columbus and native americans initially have?