You dont. you keep it forever cause it’s worth it.
In West Africa<span>, the three most </span>important<span> empires were </span>Ghana<span>, </span>Mali, and Songhai<span>, all of which profited tremendously from the trans-Saharan gold trade. ... Their territorial holdings were eventually larger than either </span>Mali<span> or </span>Ghana<span>, until civil war irreparably weakened the empire.</span>
The answer might be sugar beets. But I'm not positive.
<span>Agriculture was key to the development of modern "civilization" because by being able to grow food rather than getting it through trade or hunting, people were able to stay in one place instead of having to be where the food was. This also led to jobs because people became highly skilled in growing crops.</span>
