What contributed to the implementation of Jim Crow laws? A.
the presidential election of 1872
B.
passage of the Fourteenth Amendment
C.
the end of Reconstruction
D.
repeal of Black Code law

The roots of Jim Crow laws began as early as 1865, immediately following the ratification of the 13th Amendment, which abolished slavery in the United States. Black codes were strict local and state laws that detailed when, where and how formerly enslaved people could work, and for how much compensation.

Explanation:

it broke up the ottoman empire (just a small fact) and the turkish leaders lost many soldiers.