The black death was ? a. the attack by mongol and tatar horsemen on europe during the 13th century b. a disease that killed millions of europeans during the 14th century c. the series of civil wars between the grandsons of charlemagne for control of his empire d. a succession of extremely cold winters during the 11th century

Why was the u. s. annexation of hawaii delayed until william mckinley became president? a: the rebels who overthrew queen liliuokalani opposed u. s. annexation. b: the senate did not approve the treaty of annexation until mckinley entered the white house. c: supporters of the nationalist cause were in the majority in hawaii until 1898. d: mckinley’s predecessor, grover cleveland, refused to sign the treaty of annexation.

Which historical interpretation is supported by this source?

Why did the free african americans fight for the patriot cause and explain why enslaved africans volunteered to fight for both sides