How was Abraham Lincoln greeted by African Americans when he went to see Jefferson Davis’ office?

After visiting Peterburgs, Lincoln was taken to Richmond by Admiral Porter. Once he reached the city it was thronged by Blacks. One old lady is said to have shouted: "I know I am alive for I have seen Father Abraham and felt him."

Explanation:

a) which ethnic groups live in this community?

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the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.