Were present in Jerusalem at Pentecost (Acts 2:9). Parthia lay on the east of Media and south of Hyrcania, which separated it from the Caspian Sea. It corresponded with the western half of the modern Khorasan, and now forms a part of Persia.
Easton’s Bible Dictionary
Parthians
Easton’s Bible Dictionary (1897), public domain. Text via Theographic Bible Metadata, CC BY-SA 4.0.