In the first 525 years, he served as commander-in-chief of the immortal army and went on an expedition to Egypt with King Cambyses Ⅱ.

Before 5 18, he sent troops to India, conquered the northwest of India and established the 20th province of the Persian Empire.

In the first 492 years, the army invaded Greece, and most of the ships were destroyed by the hurricane and forced to turn back.

In the first 490 years, he attacked Greece from the sea again and was defeated by the Athenian army in the marathon.

He died in 485 BC 10, leaving the plan of the third expedition to Greece to his successor Xerxes I.

Xue Xisi is the heir of Darius I.

In 485 BC, Xue Xisi became the fourth emperor of Persia.

In 480 BC, Xerxes I led hundreds of thousands of Persian troops and 1000 warships to the west by land and water, quickly occupied northern Greece and reached Wenquanguan in the south.

In 465 BC, Prime Minister Ardaban murdered Xue Xisi and made Ardeshir I king.