Daniel 8 is a vision that outlines successive historical conquests and empires. First, the Medes and Persians conquered Babylon, about 11 years after Daniel had this vision. Next, the Greeks under Alexander the Great, about 200 years later. The Greek empire was then divided among Alexander’s four generals. Finally Antiochus Epiphanes took over the Seleucid empire in 175 BC and brought destruction to Jerusalem and the temple.