Vote For The Columbian Exchange
What is the columbian Exchange?
The reason why I'm voting for the Columbian Exchange is because, if we did not have the Columbian Exchange before we had cars we probley wouldn't be able to travel as well. If we did not have the horses that were Exchanged then it would be hard for us to travel and carry heavy stuff. So if we didn't have the horses that were in the Columbian Exchange we probley would not be able to travel has well before cars.