Which of the following best explains why the chinese rebuilt the great wall in the 1400s? a. to keep out invaders from the japanese islands b. to keep out mongolian invaders from the north c. to keep peasants employed and content d. to keep merchants and traders from exporting chinese goods

byzantine empire is the answer i think you are looking for.

hope this : )

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.