After the collapse of the Roman Empire, Europe entered a period from 500-1500 A.D. that historians call The Dark Ages or Middle Ages.
Painting, "Leif Erikson Discovers America"
During this period, the Catholic Church rose to power and the Vikings and Chinese led the world to make a few important oceanographic discoveries.
In this topic, you'll learn more about this turbulent period and some of the notable discoveries, collectively termed Early Christian Oceanography.