2) The was the key to Khan's success. It was domesticated 5,000 years
earlier in central
Kahn's soldiers can travel 300 miles a day. They are the
fastest traveling army until WWII.

Republic

Explanation:

The Roman Monarchy was overthrown in roughly 509 BCE. After the monarchy was taken down, and new form of government was established, called a republic. In this type of government, the people elected representatives to rule. The Roman Republic lasted for hundreds of years, until about 27 BCE.