Depending on what you mean, it changed when the north saw that slavery was not just, and started goin on the attack on it. Which lead to the whole civil war of confederates vs the union
The correct answers are:
2. Created laws protecting slaves and prisoners.
During the 13th century, the king Sundiata Keita united all the kingdoms of Western Africa to create the Empire of Mali. In the year 1235, he enacted the Kouroukan Fouga, the non-written constitution of the Empire of Mali, which contained laws that protected slaves and prisoners. This constitution is one of the first declarations of Human Rights in the History of Humanity. It established that slaves should be treated properly and they could only be employed or liberated, but they could never be sold by their masters.
3. Created a cabinet of advisors
In 1235, Sundiata Keita created the Gbara, or great assembly, which worked as the deliberative body of the Empire of Mali. It was formed by 30 members from the different Mandinka clans.
The KKK reemerged again and grew to millions of members in the 20s for a variety fo reasons.
They first gained a foothold in the depression after World War I before the roaring 20s. By stoking the xenophobia and conservative moralism of white Protestants in cities around the country (not just the South), the KKK was able to recruit members who feared immigrants and a loss of their "way of life."
Answer: Invasions by Barbarian tribes
The most straightforward theory for Western Rome's collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders.