c. 513 512 BC Darius I of Persia Campaigns against Scythians into European Scythia, past the Danube River, Scythians refuse to fight and Darius is forced to abandon the campaign due to lack of provisions.
515
c. 515 Darius I moves the capital of Persia from Pasargadae to Persepolis.
518
518 Darius I The Great begins construction of the city of Persepolis.
520
Darius I of Persia fights the Scythians (not very successfully).
520
Darius of Persia links the Nile and the Red Sea by a canal.