Seleucid empire, (312–64 bce), an ancient empire that at its greatest extent stretched from Thrace in Europe to the border of India. It was carved out of the remains of Alexander the Great’s Macedonian empire by its founder, Seleucus I Nicator. (See also Hellenistic Age.) Seleucus, ...
The Ptolemaic dynasty was the final dynasty of ancient Egypt before Egypt became part of the Roman Empire.