Answer:
Columbian Exchange
Explanation:
The Columbian Exchange refers to the period where there was a widespread transfer of plants, animals and culture between the Americas and Europe.
This exchange was named because of Christopher Columbus who was the Spaniard who first arrived to the Americas (while trying to find a new route from Spain to India) and started the maritime route from Europe to the Americans, starting a process of exchange of plants and animals among other things.
This exchange took place mainly during the 15th and 16th centuries.
It once had people that sacrificed humans.
The French wanted to help the Americans because they both had the same common enemy which was Britain which had become the major power in Europe. By aiding the Americans the French saw it as them also hurting their enemy.
