They played the role of providing food
The answer to this question is railroads/steamboats depending on who you ask, I just need to hit the 20 words mark to help you.
In the history of Europe, the Middle Ages or medieval period lasted from the 5th to the 15th century. It began with the fall of the Western Roman Empire<span> and merged into the </span>Renaissance<span> and the Age of Discovery.</span>