Gradually, Ghana grew<span> very rich, due in large part to the trans- Saharan trade. The</span>ghana<span> required traders to give him a percentage of the products they were trading. ... As </span>Ghana grew<span> richer, the kingdom expanded </span>into an empire<span>, requiring neighboring groups of people to pay tribute</span>
Emigration i think.........
Answer:
One reason why this is believable is because di Coppo Di Stefano Buonaiuti was in Florence at the time when the Black Death hit Florence in 1338. One reason why this passage isn't believable is because he was only two when it happened so might not remember it all.
