It contributed to the rise of the mongol empire. It also the first empire that had people able to ride horses, shoot with bows and move around.
<span>The Columbian Exchange refers to a period of cultural and biological exchanges between the New and Old Worlds. Exchanges of plants, animals, diseases and technology transformed European and Native American ways of life. Beginning after Columbus' discovery in 1492 the exchange lasted throughout the years of expansion and discovery. The Columbian Exchange impacted the social and cultural makeup of both sides of the Atlantic. Advancements in agricultural production, evolution of warfare, increased mortality rates and education are a few examples of the effect of the Columbian Exchange on both Europeans and Native Americans</span>
Because the people have never been united
By using the wheel, mankind gained the ability to work more efficiently and travel more quickly. Besides its use in transportation, the wheel went on to become the basic principle behind almost every mechanical device.
