The Greek (Bactrian) rulers who invaded and governed parts of the north-west of the Indian subcontinent from about the 2nd century BCE, the first of the foreign powers (the Indo-Greeks, Shakas, Parthians and Kushanas) to enter India after the Mauryas declined.
Menander-Milindapanha-Buddhism, the Indo-Greeks as the first to issue gold and portrait coins, and their Bactrian origin and link to Gandhara art are recurring post-Mauryan facts.
The Indo-Greeks are distinct from the Shakas (Scythians), Parthians and Kushanas who followed; their key contribution was numismatic (portrait and gold coins) rather than territorial size, since their rule was confined to the north-west.
Bactrian Greek rulers of the north-west; Menander (Milindapanha), the first to issue gold and portrait coins, and an influence on Gandhara art.