Can you please summarize what the "Colombian Exchange" is?

6 answers

A summary of "The Berlin Wall" aswell....
Thank You :-)
http://www.public.gettysburg.edu/~tshannon/hist106web/site19/
http://www.history.com/topics/cold-war/berlin-wall
http://www.google.com/#q=colombian+exchange+definition

http://www.google.com/#q=Berlin+Wall
THANK YOU SO MUCH FOR HELPING ME OUT! I REALLY APPRECIATE IT! :-)
You're welcome.