Alexander founded several cities in his new territories in the areas of the Amu Darya and Bactria, and Greek settlements further extended to the Khyber Pass, Gandhara (see Taxila), and the Punjab. Following Alexander's death on June 10, 323 BCE, the Diadochi or successors founded their own kingdoms. General Seleucus set up the Seleucid Empire in Anatolia and Central Asia and extended as far as India.