7:6 another, like a leopard. The Greek Empire is symbolized by the “leopard,” known for its quickness. Alexander the Great (356–323 b.c.) conquered the Persian Empire with great speed. Alexander died suddenly at age thirty-three, and the empire he established was divided into four parts (Macedonia under Cassander, Thrace and Asia Minor under Lysimachus, Syria under Seleucus, and Egypt under Ptolemy).