The Columbian Exchange
The peppers came from the new world. Now, Italian culture and food is famous for peppers.
The citrus fruits(oranges,lemons,et cetra) came from the old world. States like, Florida and Georgia are famous for citrus fruits.
Diseases like the flu,measles,diphtheria,and whooping cough came from the old world. The effect is now we have many more diseases than before.
The turkey came from the new world. Now many countries have this animal/food.
Cocoa beans come from the new world. Now countries like Africa are the worlds largest cocoa producers.