Answer:
Index
Explanation:
a list (as of bibliographical information or citations to a body of literature) arranged usually in alphabetical order of some specified datum (such as author, subject, or keyword):
Answer:
the Middle Ages or medieval period lasted from the 5th to the late 15th century. It began with the fall of the Western Roman Empire and transitioned into the Renaissance and the Age of Discovery
It is like gold value, gold would not be as expensive if there was plenty of it