Alexander III of Macedon, known as Alexander the Great, entered Egypt in 332 BC during his campaign to overthrow the Achaemenid Persian Empire. After defeating Darius III at Issus and capturing the eastern Mediterranean coast, Alexander encountered little resistance in Egypt and was accepted as pharaoh. He visited Memphis and traveled to the oracle of Amun at Siwa Oasis, an episode that became important in later accounts of his divine legitimacy. Most consequentially, he founded Alexandria on the Mediterranean coast, a city that would become the capital of Ptolemaic Egypt and one of the greatest intellectual and commercial centers of the ancient world. Alexander left Egypt in 331 BC and never returned, continuing eastward until his empire stretched deep into Asia. He died unexpectedly at Babylon in 323 BC without leaving an adult heir, setting off the Wars of the Successors. In biblical interpretation, Alexander is commonly associated with the Greek kingdom represented in Daniel's visions, especially the conspicuous horn of Daniel 8, but the text does not name him directly.