Seleucus Nicator established the GrecoBactrian empire and continued the intercourse with India.
Authentic information respecting the great valley of the Ganges was supplied by Megasthenes, an ambassador sent by Seleucus, who reached the remote city of Patali-putra, the modern Patna.
Heliodorus, prime minister of Seleucus Philopator, who succeeded Antiochus, arrived at Jerusalem in his progress through Coele-Syria and Phoenicia and declared the treasure confiscate to the royal exchequer.
When Seleucus was assassinated by Heliodorus, Antiochus IV., his brother, who had been chief magistrate at Athens, came xv.
The founder Seleucus (surnamed for later generations Nicator) was a Macedonian, the son of Antiochus, one of Philip's generals.