In the short term, the voyages led to the destruction of the natives of the lands that Columbus found. Some of them were killed outright. Others were enslaved. Many died of diseases brought by the Europeans.
The Ancient Greek civilization is so well known because of how much it impacts society today. They were the first ones to set the stage to many key things still used today like philosophy, literature, astronomy, mathematics, and medicine. Not only does it impact us it also affected other great civilizations like the Roman Empire. They overall are the root of who we are as a society today especially in the education aspect.
Answer:
I think the Louisiana Purchase
hope this helped