Answer: The term "function" was introduced by Gottfried Wilhelm Leibniz (1646-1716) almost fifty years after the publication of Geometry. The idea of a function was further formalized by Leonhard Euler (pronounced "oiler" 1707-1783) who introduced the notation for a function, y = f(x).
Some would argue the Soviet Union, while others say the US. It depends how you look at the question. There are certain things that prove it was the fault of one while some prove it was the fault of another.
Big Idea. When Justinian became emperor in 527, he was determined to revive the ancient Roman Empire, to build a new Rome. He established Constantinople as the capital of the Byzantine or Eastern Roman Empire and preserved Roman heritage for more than a thousand years.
