Answer: delivering mail and packages
Explanation:
<span>Black codes were restrictive laws designed to limit the freedom of African Americans and ensure their availability as a cheap labor force after slavery was abolished during the Civil War. Though the Union victory had given some 4 million slaves their freedom, the question of freed blacks’ status in the postwar South was still very much unresolved. Under black codes, many states required blacks to sign yearly labor contracts; if they refused, they risked being arrested, fined and forced into unpaid labor. Outrage over black codes helped undermine support for President Andrew Johnson and the Republican Party.</span>
The Great Zimbabwe was a country on the territory of where the modern day nation of Zimbabwe is located. It had access to the Indian Ocean and a great strategic location, especially when it came to trade, as it was an important place in the trade routes on the ocean.
The people of Zimbabwe had a strong economy, and it was largely based on trading, cattle, and crops.
Three very important and very profitable things that the people of Zimbabwe traded were the ivory, gold, and copper. All three being in abundance on their territory, or in the territories in close proximity, and all of them being in high demand and being very well paid for.
