Colombian exchange

The colombian exchange was an exchange from the spread of people from and to the old world and the new world.

tobacco was from the new world to the new world. it made smoking and chewing tobacco available in the old world.  

corn was traded from the new world to the old world. it made it able to be used in the old world .

cows were traded from the old world to the new world. it made it possible for"indians" to use milk.

tomatoes were traded from the new world to the old world. it made history when pizza was invented.

small pox were brought from the old world to the new world. it killed many natives.