Buddhism and the Classical WorldInteresting history of early buddism and their interaction with the classical age of europe.

Buddha along with Hercules

Greek God Atlas, supporting a buddhist monument, afganistan
The interaction between Hellenistic Greece and Buddhism started when Alexander the Great conquered Asia Minor and Central Asia in 334 BCE, going as far as the Indus, thus establishing direct contact with India, the birthplace of Buddhism.
Alexander founded several cities in his new territories in the areas of the Oxus and Bactria, and Greek settlements further extended to the Khyber Pass, Gandhara (see Taxila) and the Punjab. These regions correspond to a unique geographical passageway between the Himalayas and the Hindu Kush mountains, through which most of the interaction between India and Central Asia took place, generating intense cultural exchange and trade.
Following Alexander's death on June 10, 323 BCE, his Diadochi (generals) founded their own kingdoms in Asia Minor and Central Asia. General Seleucus set up the Seleucid Kingdom, which extended as far as India. Later, the Eastern part of the Seleucid Kingdom broke away to form the Greco-Bactrian Kingdom (3rd–2nd century BCE), followed by the Indo-Greek Kingdom (2nd–1st century BCE), and later still by the Kushan Empire (1st–3rd century CE). The interaction of Greek and Buddhist cultures operated over several centuries until it ended in the 5th century CE with the invasions of the White Huns, and later the expansion of Islam.
Some of the Edicts of Asoka describe the efforts made by Asoka to propagate the Buddhist faith throughout the Hellenistic world, which at that time formed an uninterrupted continuum from the borders of India to Greece..........
...........they are claimed as recipients of Buddhist proselytism: Antiochus II Theos of the Seleucid Kingdom (261–246 BCE), Ptolemy II Philadelphos of Egypt (285–247 B.C.), Antigonus Gonatas of Macedonia (276–239 BCE), Magas of Cyrene (288–258 BCE), and Alexander of Epirus (272–255 BCE).
"The conquest by Dharma has been won here, on the borders, and even six hundred yojanas (4,000 miles) away, where the Greek king Antiochos rules, beyond there where the four kings named Ptolemy, Antigonos, Magas and Alexander rule, likewise in the south among the Cholas, the Pandyas, and as far as Tamraparni." (Edicts of Asoka, 13th Rock Edict, S. Dhammika)"
More info can be found here, once again wishes all readers an early Happy Vesak Day!
http://www.religionfacts.com/buddhism/history/hellenistic.htm