Answer:
Columbian
Explanation:
The term Columbian is used to describe the exchange in America. It only began after Christopher Columbus discover America and began the trade known as Columbian Exchange. Spanish settlers made trading connections with the natives and exchange goods and materials. They also started establishing colonies in the New World.
Reconquering lost lands was a priority for Justinian I.
I want to say entrepreneurship, but there's also free economy enterprise, so... I'm gonna go with entrepreneurship.