Finally, it was determined that fleas on rats caused the Black Death, but that wasn’t until the 1850s. 1890s. 1950s. 1990s.

It was discovered in 1894, so the 1890's. Hope this helped!

no options provided, here,but the answer to this question is often: a historian cites a japanese newspaper article published a year after the end of world war ii in order to draw conclusions about the effect of the war on the japanese economy.

clearly from the answer, the historian alludes to historical sources,and records to aid in analyzing and drawing conclusion on the effect of the war on the economy of japan.

bfnfnfnfnfj d dnfnfnfnfnfndn