So that the slaves can do work for them
The royal road built in Persia during the Achaemenid dynasty proves to be the greatest achievement in improving the civilization of Persia.
Explanation
The royal road led from Aegan sea to Iran and it is around thousand five hundred miles. This road was built when the area was uninhabited by the people. But as soon as it was laid, many cities sprang up like Susa and Sardia. The roads from Susa to Persopolis which connected to India. Thees roads also interconnected canals from Nile to Red sea.
From the historic records, it was found that human porters can move up to ten to fifteen kilometers per day carrying loads of sixty to hundred kilograms.
The Constitution<span> specifically grants Congress its most important power — the authority to make laws. A bill, or proposed law, only becomes a law after both the House of Representatives and the Senate have approved it in the same form. The two houses share other powers, many of which are listed in Article I, Section 8.</span>
Farming is the correct answer to this problem.
Natives Americans were mostly killed off by the diseases brought over by the Europeans that they had never been exposed to before like smallpox or measeles.
