There are many ways in which the effects of their lives were <span>similar, but in general they both were very inspirational figures who were able to get many people to rally around them. </span>
The Visigoths rebelled because the local Roman governors mistreated them. This led to widespread discontent among the Visigoths. By the year 376 CE open rebellion broke out. Later they attacked the neighboring Roman towns and plundered them completely. This way they started growing in power.
The columbian exchange also traded slaves. A lot of them going into Brazil and into the Caribbean but not yet into the 13 British colonies. This was caused my the demand of raw materials like sugar and caused the increase of population growth in Europe as well as the development of the plantation system in America. Furthermore the columbian exchange as far as slave trade would lead to the plantation system and population increase because of a a high demand