History of Athens returned under Darius's son Xerxes. When a small Greek force holding the pass of Thermopylae was defeated, the Persians proceeded to capture an evacuated Athens. The city of Athens got captured and sacked twice by the Persians within one year after Thermopylae. Subsequently, the Athenians (led by Themistocles), with their allies, engaged the much larger Persian navy at sea in the Battle of Salamis. Xerxes built a throne on the coast in order to watch the Greek navy being defeated, but instead, the Persians were routed. This established a great turning point in the war. In 479 BC, the Athenians
Thermopylae shoreline has also advanced over the centuries because of the sedimentary deposition. The level of the Malian Gulf was also significantly higher during prehistoric times and the Spercheios River was significantly shorter. Its shoreline advanced by up to 2 kilometers between 2500 BC and 480 BC but still has left several extremely narrow passages between the sea and the mountains. The narrowest point on the plain, where the Battle of Thermopylae was probably fought, would have been less than wide. Between 480 BC and the 21st century, the shoreline advanced by as much as in places, eliminating the narrowest points