Alexander turned south to take Babylon, Shushan (Susa), and Persepolis​—Persian administrative centers. He then sped through the Persian domain, reaching the Indus River in what is now Pakistan. In just eight years, Alexander conquered most of the then-known world. But in 323 B.C.E., when 32 years old, he died of malaria at Babylon.​—Da 8:8.

After Alexander, four of his generals controlled the vast empire

▪ Cassander

▫ Lysimachus

○ Ptolemy I

• Seleucus I