What were the key significant economic, political, and social characteristics of ghana, mali, and songhai?

Economic:

Traded gold for salt and other products (Ghana, Mali, and Songhai)

Political:

Separated into clans/King's clans were the wealthiest (Ghana)

Dyula was made up of Muslim merchants, Mansa Musa mecca pilgrimage (Mali)

Sonni Ali expanded the Songhai Empire (Songhai)

Social:

Dyula established settlements and contributed to the spread of Islam and trade (Mali)

Established a social hierarchy (Songhai)

Explanation:

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.

its b wells tried to fight lynching in the south by