How does geography affect the use of slavery in America colonies

Read the following quote from Frederick Douglass:

“Verily, the work does not end with the abolition of slavery, but only begins.”

What does Douglass mean by this statement?  What work might need to be done in 1865?

Explanation:

v

d) all choices are correct

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.