Indo-Greeks

State · 126 BCE – 13 CE · at its largest around 126 BCE

Hellenistic kingdoms in present-day Afghanistan, Pakistan and northwest India, whose best-known ruler Menander appears in Buddhist literature.

On its lands while it lasted

• Greco-Bactrian Kingdom (c. 256–120 BCE): Hellenistic kingdom established when the satrap Diodotus broke away from the Seleucid Empire around 256 BCE, centred on Bactra (Balkh).
• Alexandria on the Caucasus (c. 126 BCE – c. 10 CE): Capital of Indo-Greeks (126 BCE–10).

More on Wikipedia.