Philip Schaff,
Ante-Nicene Fathers Vol. V, Hippolytus…
(1885)
“ Then after the lioness, the prophet sees a second beast like a bear, which denoted the Persians; for after the Babylonians the Persians had the sovereignty. And in saying, “I saw three ribs in the mouth of it,” he referred to three nations, the Persians, Medes, and Babylonians, which were also expressed by the silver that came after the gold in the image. Behold, we have explained the second beast too. Then the third was the leopard, by which were meant the Greeks. For after the Persians, Alexander king of the Macedonians held the sovereignty, when he had destroyed Darius ”
